PITTSBURGH — Sidney Crosby sat out the Pittsburgh Penguins' optional practice Thursday with an undisclosed injury, possibly to his left knee, but it may not keep him out of tonight's game against Anaheim.

Crosby was injured while attempting to hit David Steckel of Washington late in the Penguins' 6-3 loss Wednesday night. Crosby had to be helped to the bench, then went to the locker room before the game ended.

Crosby may learn during the pregame skate today if he can play.

Crosby, who underwent an MRI exam, said he doesn't have much swelling.

Forward Max Talbot (undisclosed injury) and defenseman Rob Scuderi (facial injury) also did not practice after being injured during the Penguins' eighth loss in 10 games.

The deadline for underclassmen to make themselves eligible for the NFL draft passed Thursday and quarterback Mark Sanchez dropped some bad news on Southern California, and defending national champion Florida said goodbye to one star while welcoming back another.Sanchez made the biggest news, deciding to go pro after starting only 16 games for USC, and versatile receiver Percy Harvin gave up his senior season at Florida, no surprise considering he stands a good chance to be picked early in the first round.All-American linebacker Brandon Spikes is coming back for his senior season to help Tim Tebow and the Gators try to repeat in 2009.

OXON HILL, Md. — Giving in to the young-and-younger movement in college basketball recruiting, the NCAA has decreed that seventh-graders are now officially classified as prospects.The organization voted Thursday to change the definition of a prospect from ninth grade to seventh grade — for men's basketball only — to nip a trend in which some college coaches were working at private, elite camps and clinics for seventh and eighth-graders. The NCAA couldn't regulate those camps because those youngsters fell below the current cutoff.Schools had expressed concern that the younger-age elite camps were giving participating coaches a recruiting advantage, pressuring other coaches to start their own camps.