ATP Tour officials are investigating suspicious betting patterns on a match after the No. 4 men's player in the world withdrew with an injury.
Britain's Betfair, U.K.'s biggest online betting house, voided all wagers for the first time on Thursday's second-round match at the Prokom Open in Sopot, Poland, between Nikolay Davydenko and No. 87 Martin Vassallo Arguello. Betfair said it received about $7-million in bets, 10 times the usual amount, mostly on Arguello to win even after Davydenko won the first set 6-2.
Arguello won the second set 6-3 and led 2-1 in the third when the Russian retired. Davydenko said he aggravated a left foot injury. "I don't think (Davydenko) has something to do with this," Arguello said. "I saw Davydenko playing very well the first set, and I saw also that he had problems with his feet."
Betfair, which has had an agreement with the ATP since 2003 to share information on any irregular betting activity, said it was concerned with the volume of wagers coming in on Arguello.
LEGG MASON: Andy Roddick defeated Hyung-Taik Lee 7-6 (8-6), 6-2 in the quarterfinals in Washington.
ACURA CLASSIC: Patty Schnyder upset No. 4 seed Nadia Petrova 6-4, 6-4 to reach the semis in Carlsbad, Calif. Top seed Maria Sharapova ousted Sania Mirza 6-2, 6-1.
Phelps dazzles again
Two-time Olympian Michael Phelps nearly set a world record in the 100 backstroke at the U.S. National Championships in Indianapolis. His time of 53.01 seconds was the second-fastest ever, just 0.03 off Aaron Peirsol's mark set in March at the world championships. Also, Katie Hoff won the 200 free, and Brendan Hansen easily won the 100 breaststroke.
Morales barely makes weight
Erik Morales, who seeks to become the first Mexican to win a world title in four weight classes, barely made the limit at the weigh-in for tonight's fight in Chicago. Morales, who faces David Diaz for the WBC lightweight championship, weighed 135 pounds, the limit, on his second try.
CUBANS FOUND: Two Cuban boxers who disappeared during last month's Pan American Games were found Thursday at a resort near Rio de Janeiro where police say they partied and ran up an exorbitant tab. Now, a police inspector says Guillermo Rigondeaux and Erislandy Lara want to go back to Cuba.
CYCLING: Theo de Rooij, the general director of the Rabobank team, resigned 10 days after he dismissed Michael Rasmussen from the squad while he was leading the Tour de France.
HORSES: Bold Chieftain defeated Epic Power by 1-1/4 lengths to win the $136,200 California Dreamin' Handicap at Del Mar. Ridden by Russell Baze, Bold Chieftain covered 11/16 miles on the turf in 1:39.98.
OBITUARY: Jerry Schneider, the man credited with building the first indoor tennis facility, died July 18 in Longboat Key. He was 87. Mr. Schneider died of complications from lung cancer, said his daughter, Marlon Barden of Highland Park, Ill. Mr. Schneider established the North Shore Racquet Club in 1961 in the Chicago suburb of Glenview, using money his father loaned him. He sold the club in the early 1970s and moved to Florida in 1975.