LONDON (AP) — Gymnast Gabby Douglas is back in action today in her final event at the Olympics. Already a two-time gold medalist, the 16 year old is looking for gold in the women's balance beam. On the men's side of things, Danell Leyva, the bronze medalist in the men's all-around, competes on the high bar along with teammate Jonathan Horton.

The semifinals are on tap today in women's beach volleyball. Both U.S. teams are still alive with the duo of Kerri Walsh Jennings and Misty May-Treanor facing the defending bronze medalist team from China. The No. 2 U.S. team of April Ross and Jennifer Kessy is facing the reigning world championship team from Brazil.

In track and field there are gold medals to be won in the men's 15-hundred meters, men's high jump and women's 100 meters hurdles.

The U.S. women's basketball team has a quarterfinal game with Canada and the women's volleyball team is facing the Dominican Republic in a quarterfinal match.

TRACK AND FIELD

Bolt advances in 200

LONDON (AP) — Usain (yoo-SAYN') Bolt opened defense of his Olympic 200-meter title with a comfortable win in the opening round today, easing up to a jog over the final 80 meters to finish in 20.39 seconds. The Jamaican, who won the 100 meters Sunday night in an Olympic-record 9.63 seconds, will race again tomorrow in the 200 semifinals. The final is Thursday.

Bolt's teammate, 100-meter silver medalist Yohan Blake, won his heat easily in 20.38 as well. American Wallace Spearmon also qualifed with a time of 20.47.

MONDAY RECAP:

MEN'S BASKETBALL

Team USA roars into the medal round

LONDON (AP) — After squeaking out a five-point victory over Lithuania last time out, Team USA regained its shooting touch in 126-97 victory over Argentina that puts the Americans in the medal round in men's basketball. Team USA next plays Australia in Wednesday's quarterfinals.

Kevin Durant scored 28 points -- 17 during a long-range shooting display in the third quarter in a game that included taunting, finger-pointing and technical fouls.

LeBron James scored 18 points but spent most of the second half on the bench with four fouls.

Manu Ginobili (MAN'-oo jih-NOH'-blee) scored 16 for Argentina, which will play Brazil in the first game of single-elimination play.

WOMEN'S SOCCER

U.S. stuns Canada

MANCHESTER, England (AP) — Alex Morgan headed in the game winner in injury time of extra time to give the United States a thrilling 4-3 win over Canada in women's soccer semifinals.

Christine Sinclair had the hat trick to give Canada three separate leads, but the U.S. came back behind a pair of goals Megan Repinoe. Abby Wambach forced the overtime by scoring on a penalty kick in the 80th minute.

The victory secures a spot for the two-time defending Olympic champs in the gold medal game where the Americans will take on Japan Thursday.

TRACK AND FIELD-WOMEN'S POLE VAULT

American Suhr vault to gold

LONDON (AP) — Jenn Suhr has won the gold medal in the women's pole vault, ending Russian Yelena Isinbayeva's bid for a third straight Olympic title.

Suhr won after clearing 15 feet, 7 inches at her second attempt.

TRACK AND FIELD-MEN'S 400-METER HURDLES

U.S. gets silver in hurdles

LONDON (AP) — American Michael Tinsley had to settle for the silver medal, finishing second to the Dominican Republic's Felix Sanchez in the 400-meter hurdles. Sanchez reclaimed the Olympic title he won eight years ago in Athens.

TRACK AND FIELD-200 METER QUALIFYING

Ross leads U.S. charge

LONDON (AP) — Sanya Richards-Ross led the qualifying in the opening round of the 200 meter heats. The 400-meter gold medalist turned in a time of 22.48 seconds. Fellow American teammates Carmelita Jeter (JEH'-tur) and Allyson Felix also advanced.

GYMNASTICS-UNEVEN BARS

Mustafina wins, Douglas doesn't medal

LONDON (AP) — Russian's Aliya Mustafina won the title on uneven bars, just 18 months after blowing out her knee and putting her chances for London in doubt.

All-around gold medalist Gabby Douglas finished last among the eight competitors.

She'll get another shot at adding to her personal medal count in the individual balance beam on today.

WOMEN'S BOXING

American clinch medals

LONDON (AP) — Flyweight Marlen Esparza and middleweight Claressa Shields secured at least bronze medals for the United States in the debut of women's boxing at the Olympics. Esparza outboxed Venezuela's Karlha Magliocco, and the 17-year-old Shields closed furiously in an 18-14 win over Swedish veteran Anna Laurell.

50 METER RIFLE

U.S. wins bronze

LONDON (AP) — The United States added to its medal count when Matthew Emmons claimed the bronze in the 50-meter rifle three positions at the Olympics. He was in line for the silver medal but was overtaken in the last of the final's 10 shooting rounds.

BEACH VOLLEYBALL

U.S. team goes down

LONDON (AP) — The United States men's volleyballers are going home without a medal.

Americans Jake Gibb and Sean Rosenthal were knocked out of the Olympic beach volleyball tournament by Latvia. The Americans won the first set 21-19, then dropped two straight to Martins Plavins and Janis Smedins, 21-18, 15-11.

The other American men's team, Beijing gold medalists Todd Rogers and Phil Dalhausser, had already been eliminated.

WATER POLO

U.S. swamped by Hungary

LONDON (AP) — Defending champion Hungary rolled to a dominating 11-6 win over the United States in the last preliminary-stage game for the Americans at the London Olympics. The Americans finished play in Group B with two losses to end up even with Hungary with six points.

The U.S. had already qualified to advance in the tournament.

JUDO-DOPING-DELPOPOLO

Must have been something he ate

LONDON (AP) — American judo fighter Nick Delpopolo has been expelled from the Olympics for doping, saying he unintentionally ate something before the games that had been baked with marijuana.

The IOC says Delpopolo tested positive for metabolites of cannabis after competing on July 30, the day he competed.

Delpopolo has been disqualified from the 73-kilogram class, where he placed seventh.

RACE WALK-DOPING

Italian walker tests positive

LONDON (AP) — Defending Olympic 50K race walk champion Alex Schwazer has been caught doping and will miss the London Games. The Italian Olympic Committee says Schwazer has tested positive and has been removed from the team.

The 28-year-old was due to defend his 2008 Olympic title in the 50-kilometer walk on Sunday.

TAXES

Keep it all

WASHINGTON (AP) — The White House says President Barack Obama supports a measure that would exempt U.S. Olympians from taxes on their prizes. Press secretary Jay Carney says Obama would sign into law legislation introduced by Republican Sen. Marco Rubio of Florida. Rubio wants Americans who win medals to keep all of the prizes the U.S. Olympic Committee awards to them.

Olympians who earn gold medals receive a $25,000 price, silver winners get $15,000 and bronze winners pick up $10,000.

MEDALS

China leads U.S. in close race

LONDON (AP) — China is atop the medals table with 31 golds and 64 total medals. The United States is second with 29 golds and 63 medals overall. Russia has moved into third place in total medals with 42 -- seven of them gold. Britain has 18 golds and 40 total medals.

IN OTHER SPORTS:

MLB-LATEST SCORES

Verlander fans 14 Yanks...Tribe loses 10 in a row

UNDATED (AP)__ Justin Verlander matched a career high with 14 strikeouts and Prince Fielder and Miguel Cabrera homered in the Detroit Tigers' 7-2 win over the New York Yankees. Detroit has won 19 of its last 23 home games. The AL East-leading Yankees have lost 11 of 17 overall.

Verlander is 12-7. He threw 132 pitches, his most in a regular-season game, and sent the Tigers to their fifth straight win.

Verlander gave up two unearned runs after his fielding error extended the fifth inning. The AL MVP and Cy Young Award winner wound up going eight innings, and got a huge roar when he left the mound.

In the rest of the AL:

— Justin Morneau (mohr-NOH') homered twice and drove in four runs, Joe Mauer had three RBIs and Ryan Doumit hit a three-run homer to lead the Minnesota Twins to a 14-3 rout of Cleveland. That's the Indians' 10th straight loss.

— Dustin Pedroia (peh-DROY'-uh) had three of Boston's eight doubles, Aaron Cook pitched seven solid innings and the Red Sox beat the Texas Rangers 9-2.

— Baltimore beat Seattle 3-1. Nick Markakis (mar-KAY'-kihs) homered and Mark Reynolds had three hits and an RBI.

— The Chicago White Sox doubled up Kansas City 4-2. Gordon Beckham and Paul Konerko homered. Chris Sale improved to 13-3.

— The L.A. Angels blanked Oakland 4-0 on a Jered Weaver four-hitter. Weaver leads the majors with a 15-1 record. He struck out nine. The Angels ace has won a career-best 10 straight starts

Over in the NL:

— Ben Sheets pitched into the eighth inning and Jason Heyward homered to lead the Atlanta Braves to a 6-1 victory over Philadelphia. The Braves have beaten the Phillies seven straight times.

— Washington retained its three-game lead over Atlanta in the NL East by beating Houston 5-4 in 11 innings. Roger Bernadina scored the go-ahead run from first base on an attempted sacrifice that the Astros botched and committed two throwing errors on the play. The Astros are 0-10 in extra inning games.

— Erik Bedard (beh-DARHD') allowed two hits over seven innings and the Pittsburgh Pirates opened a season-long 11-game homestand with a 4-0 win over Arizona.

— Jake Westbrook threw six solid innings and Carlos Beltran hit his 26th home run as the St. Louis Cardinals beat Matt Cain and the San Francisco Giants 8-2.

— Yovani Gallardo (gy-YAR'-doh) won his 10th game and Martin Maldonado homered and drove in three runs to help the Milwaukee Brewers beat the Cincinnati Reds 6-3.

— San Diego blanked the Chicago Cubs 2-0. Eric Stults and four relievers combined on a five-hit shutout.

— The Colorado Rockies topped the L.A. Dodgers 2-0. Chris Capuano and five relievers combined on a five-hitter. The Dodgers have been blanked 10 times.

MLB-NEWS

Longoria set to return...Horton shut down

UNDATED (AP) — Three-time All Star Evan Longoria is set to return to Tampa Bay's lineup tonight after being sidelined more three months with a partially torn left hamstring. He was batting .329 with four homers and 19 RBIs in 23 games before being injured on April 30.

In other baseball news:

— Todd Helton's worst season of his career is over. The Colorado Rockies say their first baseman and clubhouse leader will undergo arthroscopic surgery Friday to repair a torn labrum in his right hip. A career .320 hitter, Helton batted just .238 this season.

NFL-NEWS

League disputes settlement report...T.O. signs with Seahawks

UNDATED (AP) — The NFL calls a report it has offered a settlement and reduced suspension to Saints linebacker Jonathan Vilma "completely inaccurate."

Vilma has been suspended for the 2012 season for his role in the Saints bounty program, which he adamantly has claimed did not exist. Citing anonymous sources, ESPN.com reported the league offered Vilma an eight-game suspension if he would drop his defamation lawsuit against NFL Commissioner Roger Goodell (guh-DEHL').

In other NFL news:

— Terrell Owens is coming back to the NFL after one year on the sidelines. Owens had a tryout with the Seahawks, who signed the 38-year-old receiver. He hasn't played in the NFL since 2010. Owens then had surgery on his left knee and didn't receive any offers to play last season.

— Tennessee Titans wide receiver Kenny Britt has met with league officials at the NFL offices after being charged with driving under the influence.

— Jacksonville first-round pick Justin Blackmon has agreed to terms ending his holdout. The contract will be worth about $18.5 million for four years, which is the maximum for a fifth pick under the NFL's rookie wage system. Blackmon missed the first 11 days of training camp.

NBA-KINGS-SMART

Kings extend Smart

SACRAMENTO, Calif. (AP) — Keith Smart is getting the closest thing he's ever had to a long-term deal as an NBA coach. The Sacramento Kings extended Smart's contract through the 2013-14 season.

COLLEGE FOOTBALL-PENN STATE-APPEAL

Trustee plans appeal of NCAA sanctions

STATE COLLEGE, Pa. (AP) — A Penn State trustee says he plans to file an appeal with the NCAA over the strict sanctions imposed on the university for the Jerry Sandusky child sex abuse scandal. Trustee Ryan McCombie says he's taking action in the interest of due process and sought an NCAA hearing.