Roddick and Agassi Advance

Top-seeded Andy Roddick advanced to the semifinals of the Siebel Open in San Jose on Friday with a 6-3, 7-6 (7) victory over Joachim Johansson.

Second-seeded Andre Agassi also advanced to the semifinals with a 7-6 (4), 7-5 victory over Jan-Michael Gambill.

After breezing through the first set in 25 minutes, Roddick had to battle to win the second. He jumped to a 4-0 lead in the tiebreaker but couldn’t hold it as he was forced to chase hard groundstrokes in the corners. Roddick, ranked third in the world, improved to 10-2 this year.

Roddick will play wild-card entry Robert Kendrick, who advanced to the semifinals of an ATP tournament for the second time in his career after a 7-6 (6), 4-6, 6-3 victory over Cyril Saulnier.

Agassi will face Mardy Fish, a 6-2, 6-3 winner over Hyung-Taik Lee.

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Top-seeded Kim Clijsters narrowly avoided an upset to reach the semifinals at the Gaz de France at Paris, beating Silvia Farina Elia, 3-6, 7-5, 6-3.

Farina Elia served for the match at 6-3, 5-3, but she won only three points in the next four games as Clijsters rallied to win the second set.

Clijsters will play 17-year-old Dinara Safina, who beat fifth-seeded Francesca Schiavone, 6-2, 4-6, 6-4. Safina is the sister of Russian standout Marat Safin.

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Winter Sports

Frank Luck became the winningest biathlete in world championship history after helping Germany win a 30-kilometer relay event at Oberhof, Germany.

Luck, who will end his career after this season, raced the opening leg, leaving his team in third place. In all, he has 11 gold medals, five silver and four bronze.

Germany finished in 1 hour 17 minutes 50.3 seconds to defeat Norway by 15.7 seconds.

Rusty Smith of Sunset Beach won his second World Cup speedskating medal of the season with a second-place finish in a 500-meter event at Bormio, Italy. Mathieu Turcotte of Canada won in 41.456. Smith was timed in 41.556.

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Baseball

The Minnesota Twins won their salary arbitration case with left-hander Johan Santana, who will get a raise from $335,000 to $1.6 million instead of $2.45 million. He was 12-3 with a 3.07 earned-run average last season.

Third baseman Shea Hillenbrand agreed to terms with the Arizona Diamondbacks on a $2.6 million, one-year contract, avoiding an arbitration hearing.

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Jurisprudence

Former heavyweight champion Joe Frazier was arrested and charged with assaulting a woman in Philadelphia. The victim was described in police documents as the mother of his son, department spokesman Cpl. Jim Pauley said.

The 44-year-old woman was not seriously injured and refused medical treatment, police said.

Frazier, 60, was awaiting arraignment on charges of simple assault and reckless endangerment.

Police Commissioner Sylvester Johnson said officers responded to a 911 call at a home in North Philadelphia. The woman had injuries to her lip and face and said Frazier struck her.

Miami’s top football recruit, linebacker Willie Williams, was released from jail in Fort Lauderdale, Fla., three days after surrendering on an arrest warrant for allegedly violating probation.

The 19-year-old Williams was freed after posting a $2,500 bond, jail officials said.

Circuit Judge Michael Kaplan said he wanted court employees assigned with monitoring the defendant to “keep their thumb on Mr. Williams.”

Williams must stay home and be monitored by an ankle bracelet when not in school or court.

The latest charges against him stem from a five-hour spree during a recruiting trip to Gainesville, Fla. He is accused of setting off three fire extinguishers in his hotel, grabbing a woman against her will and hitting a man at a bar.

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Arena Football

Leon Murray’s eight-yard touchdown run on fourth down with 24 seconds left gave the Georgia Force a 70-62 victory over the Tampa Bay Storm in front of 14,104 at Tampa, Fla. Storm quarterback Shane Stafford threw eight touchdown passes.... Matt Nagy threw a six-yard touchdown pass to Damien Groce as time expired, lifting the Carolina Cobras over the Columbus Destroyers, 54-53, in front of 17,171 at Columbus, Ohio.... The Detroit Fury beat the Arizona Rattlers, 48-31, in front of 12,123 at America West Arena in Phoenix.... The Austin Wranglers edged the Orlando Predators, 49-48, in overtime in front of 13,218 at Orlando, Fla.

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Miscellany

The University of Colorado said that calls were placed to an escort service and singles chat line from a school cell phone once assigned to a football recruiting assistant.

The school, which is investigating allegations its football program used sex and alcohol to entice recruits, said the calls were placed on a phone assigned to Nathan Maxcey, who worked in the program in 2002 and 2003.

There is no evidence suggesting the calls were made for athletes, university spokeswoman Pauline Hale said. But she said that the investigation was still going on.

Florida State withdrew its scholarship offer to football recruit Jonathan Warren, one day after he and two others were charged with two counts of committing a lewd and lascivious act with a minor.

Warren, 19, a safety, was released from jail in Tallahassee, Fla., on $25,000 bond.