Sports in Brief: Suit: Armstrong owes $12 million

A Dallas promotions company sued Lance Armstrong on Thursday, demanding he repay $12 million in bonuses and fees it paid him for winning the Tour de France.

SCA Promotions had tried in a 2005 legal dispute to prove Armstrong cheated to win before it ultimately settled and paid him.

Armstrong recently acknowledged using performance-enhancing drugs, and the U.S. Anti-Doping Agency in 2012 detailed a sophisticated doping program by Armstrong's teams. Armstrong was stripped of his seven Tour de France victories and given a lifetime ban from sports.

Now, the company contends in its lawsuit, Armstrong and agent Bill Stapleton conspired to cheat SCA out of millions. The lawsuit notes that Armstrong repeatedly testified under oath in the 2005 dispute that he did not use steroids, other drugs or blood doping methods to win, all of which he now admits to doing.

TENNIS: Rafael Nadal and Juan Monaco reached the doubles semifinals at the VTR Open with a 6-2, 7-6 (4) victory over Guillaume Ruffin and Filippo Volandri in Vina Del Mar, Chile.

It was Nadal's third match in three days after being away from the tour for just over seven months with an inflamed left ankle and a stomach virus.

Nadal faces fellow Spaniard Daniel Gimeno-Traver in the singles quarterfinals Friday.

St. Joseph's tennis player Casey Robinson became the Hawks' all-time leader in singles victories last weekend when she won her career 48th match. She eclipsed Allison Popen's record of 47 career wins.

The fourth singles in a Fed Cup series will be scrapped if a team has an unassailable 3-0 lead.

The International Tennis Federation revised its policy to allow the doubles played instead of the fourth singles.

Juan Margets, executive vice president of the ITF, said that the rule change "came in response to requests from players, captains, and national associations" after its introduction in the Davis Cup.

SOCCER: Lionel Messi signed a two-year contract extension with Barcelona, tying him to the Spanish club until 2018.

The 25-year-old forward joined Barcelona when he was 13 and debuted with the first team three years later. He has gone on to become Barcelona's career scoring leader and won four FIFA player of the year awards.

COLLEGES: Gettysburg College was picked to repeat as Centennial Conference women's lacrosse champion, according to the preseason coaches' poll. Franklin and Marshall was picked second.

TRACK AND FIELD: Britain is waiving its tax rules to lure Usain Bolt and other top international athletes to compete at this summer's Diamond League event in London's Olympic Stadium.

The British government has agreed to an amnesty that will allow international athletes to compete tax-free at the London Grand Prix on July 27 - the anniversary of the opening of the London Games.

- Staff and wire reports