PITTSBURGH - Right wing Colby Armstrong, who didn't miss a single game with the minor-league's Wilkes-Barre/Scranton Penguins last season, has re-signed with the Pittsburgh Penguins.

Armstrong's one-year contract was worth $778,050, said his agent, Craig Oster.

Armstrong, 22, played 80 games with the AHL team in the 2004-05 season, recording 18 goals, 37 assists and 55 points. He tied for third on the team in scoring.

The 6-foot-2, 190-pound native of Lloydminster, Saskatchewan, was drafted by the Penguins in the first round of the 2001 Entry Draft.

LOS ANGELES - Mike Cameron was to undergo facial surgery one day after his frightening outfield collision with New York Mets teammate Carlos Beltran.Cameron was scheduled to be operated on in San Diego, where he is expected to remain for at least four more days. Beltran was expected to miss New York's three-game weekend series with the Los Angeles Dodgers because of a concussion and a small fracture in his cheekbone.Both players spent Thursday night at different hospitals following their crash in the Mets' 2-1 loss to the Padres.

CARSON, Calif. - Maria Sharapova withdrew from the JPMorgan Chase Open because of a strained chest muscle, postponing her move to the world No. 1 ranking until Aug. 22.Fifth-seeded Kim Clijsters reached the semifinals with a 6-4, 6-2 victory over No. 4 seed Nadia Petrova. She next will meet Francesca Schiavone, a winner over Conchita Martinez.Hantuchova advanced via walkover to her third semifinal of the year. She will play No. 3 seed Elena Dementieva, who routed Italian qualifier Tathiana Garbin.

MONTREAL - Top-seeded Rafael Nadal advanced to the semifinals of the Rogers Cup, needing just 72 minutes to oust Mariano Puerta of Argentina 6-3, 6-1 in a rematch of the French Open final.Nadal will face unseeded Paul-Henri Mathieu, who defeated Karol Beck of Slovakia.Fourth-seeded Andre Agassi was ahead of sixth-seeded Gaston Gaudio of Argentina when play was suspended due to rain.

The Sacramento Kings signed guard Shareef Abdur-Rahim to a multiyear contract.Abdur-Rahim was traded to New Jersey three days ago by Portland, but the Nets rescinded the deal because of medical concerns about the nine-year veteran's right knee.

MINNEAPOLIS - The Minnesota Timberwolves traded point guard Sam Cassell and a conditional first-round draft pick to the Los Angeles Clippers for guards Marko Jaric and Lionel Chalmers.

INDIANAPOLIS - Todd Thornton cruised to his first title in the U.S. Gymnastics Championships, finishing with 106.900 points, more than a point ahead of second-place David Sender.Thornton automatically qualified for the individual world championships Nov. 21-27 in Melbourne, Australia. Five additional members will be chosen after a training camp in October.

WATKINS GLEN, N.Y. - Nextel Cup champion Kurt Busch will be back to fulfill the final year of his contract with Roush Racing because his car owner will not let him go early.Jack Roush said Busch sought a release for 2006 after telling him earlier this week that he had a deal for 2007 with Roger Penske.Roush already is faced with trying to fill one of his five cars for next season. He has signed Jamie McMurray to replace Mark Martin in 2007.