The Philadelphia Eagles have told Mark Sanchez that Tim Tebow was signed to be a camp arm and that he probably won't make the regular season roster.

"He's obviously a great guy, he works hard. And we needed another guy to throw while Sam's [Bradford] still recovering," Sanchez said Friday. "So that's the reason [for the signing], at least as explained to me. We're excited about the upcoming year and I think we have a great group."

The day before Sanchez's remarks, Eagles' new vice president of player personnel Ed Marynowitz explained why the team signed Tebow.

"We worked him out and we saw improvement from the last time we saw him, had exposure to him live when we played New England when they practice here," Marynowitz said. "When we worked him out, we saw a great deal of improvement with him. ...

"We've got 68 players that are on our roster right now," he continued. "Tim is one of 68 so he'll have an opportunity to compete for a roster spot here. ... His role will be determined by his performance. We're excited that he's a member of the organization, and we're looking forward to him competing."