Denver Broncos rookie cornerback Perrish Cox has been arrested for investigation of felony sexual assault, police said Friday.

Michelle Kivela, the public information officer for the city of Lone Tree, Colo., said Cox was arrested Thursday night following an investigation into an Oct. 28 incident and was transported to a nearby county jail.

Cox appeared Friday in Douglas County Court in nearby Castle Rock wearing a gray prison uniform. His feet were shackled and he was escorted by an armed sheriff's deputy.

A judge declined a defense attorney's request to reduce a $50,000 bond but did say that Cox can leave the state two times - apparently to play in Broncos away games. Cox waived extradition, meaning he agreed not to fight transport back to Colorado if for some reason he were arrested out of state.

The case filing was sealed at the request of the District Attorney's Office. Cox's next court hearing was set for Jan. 7.

Broncos media relations director Patrick Smyth said the team was "in the process of gathering information and reviewing the facts."

Cox has played in 11 games this season after being taken in the fifth round out of Oklahoma State.

Players still confused on hits. Seven weeks after the NFL's crackdown on illegal hits, players remain confused about what they can and can't do. The league says there should be no such uncertainty.

Many players questioned by the Associated Press over the last week believe there's a lack of consistency in calls; don't understand the disciplinary process through which fines are handed out; say the punishments often don't fit the crime; and even suggest some players are being targeted by game officials and the NFL.

NFL senior vice president of football operations Ray Anderson replied that the process is clear and transparent, and any favoritism "is not something we would tolerate or condone."

Favre listed as questionable. Brett Favre is listed as questionable for Sunday's game against the New York Giants, and coach Leslie Frazier said it would be a game-time decision on whether he will make his 298th straight regular season start. The Minnesota Vikings quarterback participated in practice on a limited basis Friday, the first time he has practiced all week. The 41-year-old Favre has a sprained joint in his right throwing shoulder.

Skins' Torain likely to play. Washington Redskins running back Ryan Torain is set to return after missing four games with a hamstring injury. Coach Mike Shanahan said that Torain had no setbacks this week and "should be full-go" for Sunday's game against the Tampa Bay Buccaneers. Torain is the team's leading rusher with 391 yards this season.

Chiefs mum on Cassel. Two days after an emergency appendectomy, quarterback Matt Cassel attended the Kansas City Chiefs' practice but didn't participate. The Chiefs refused to say if Cassel would be out on Sunday when they play at San Diego in an AFC West showdown. Coach Todd Haley said Cassel would be listed as doubtful when the injury report comes out.

They could use his arm, too. Hall of Famer John Elway is confirming his interest in working for the Denver Broncos again. Elway said on his weekly radio show on Denver's 87.7 The Ticket that he has spoken with team owner Pat Bowlen and chief operating officer Joe Ellis about joining the front office in an official capacity, but those discussions haven't gone far.