Miami Dolphins rookie quarterback John Beck says he'll spend a good part of his four-day weekend with a laptop and a stack of videos.

He won't be watching "Evan Almighty" or 'We Are Marshall," but rather game footage of the Buffalo Bills' defense.

Beck knows he might start against the Bills next week.

"I'm definitely going to try to study and prepare myself," he said.

With a bye this week, coach Cam Cameron gave his winless team Thursday through Sunday off. Cameron said he and his staff will evaluate the quarterbacks situation during the break before deciding whether it's time for Beck's first career start.

But on Wednesday, Cameron signaled the job is up for grabs by increasing Beck's share of the practice time to divide snaps about 50-50 with Cleo Lemon, who started the past three games.

"You're always looking for ways to get better," Cameron said. "The quarterback position is no different."

STEROID UNCERTAINTY: Jaguars defensive tackle Marcus Stroud practiced as usual Wednesday despite uncertainty about his future.

A newspaper and a radio station reported that Stroud is facing a four-game suspension for violating the NFL's steroids and related substances policy. The Florida Times-Union and WJXL-AM in Jacksonville, citing anonymous sources, said Stroud tested positive for banned supplements.

According to the Times-Union, Stroud's "A" sample came back positive last week. The paper said he exercised his right to have his "B" sample tested Monday.

Stroud, a three-time Pro Bowl tackle who has 29 tackles and three sacks this season, declined to address the reports Wednesday, but said he expects to play at New Orleans.

SCHAUB LIKELY SIDELINED: Matt Schaub was still feeling the effects Wednesday of a concussion from a helmet-to-helmet hit against San Diego, and coach Gary Kubiak said he probably wouldn't play Sunday against Oakland. Schaub, who has started every game for the Texans since an offseason trade with Atlanta, said his health has improved dramatically since Sunday.

REHAB REDUX: Former Los Angeles Raiders quarterback Todd Marinovich has been given another chance at rehabilitation after pleading guilty to drug charges. The 38-year-old former Southern California player pleaded guilty Tuesday to felony possession of a small amount of methamphetamine and misdemeanor syringe possession and resisting arrest in Santa Ana, Calif. Orange County Superior Court Commissioner James Odriozola decided Marinovich, who has had previous stints in drug rehab, should be given one more chance, said Deputy District Attorney Chris Kralick.

COLES STATUS UNCERTAIN: Jets wide receiver Laveranues Coles has a concussion and it was uncertain Wednesday if he'll play in New York's game against Washington this weekend. Coach Eric Mangini addressed Coles' injury during a conference call with Redskins beat writers. The Jets wide receiver didn't practice Wednesday and wouldn't address the injury because it's against team policy.

DOLPHINS MOVES: The Miami Dolphins claimed running back Samkon Gado off waivers from the Houston Texans and waived defensive tackle Sam Rayburn.