But Mark Sanchez, who also is in the Eagles' quarterback mix, does not seem concerned by Tebow's presence in camp.
"He's obviously a great guy, he works hard. And we needed another guy to throw while [Sam Bradford] is still recovering," Sanchez said during an interview Friday with CSNPhilly.com. "So that's kind of the reason there [for the signing], at least as it was explained to me."
The Eagles signed Tebow on Monday, adding the former Heisman Trophy winner to a roster that already includes Sanchez, who started eight games for Philadelphia last season, and Bradford, who was acquired in an offseason trade despite missing most of the last two seasons with knee injuries.
Eagles vice president of player personnel Ed Marynowitz said Thursday that Tebow will "have an opportunity to compete for a roster spot here" as a quarterback, praising his improved throwing mechanics.
Tebow was Sanchez's backup in 2012 with the Jets, but his popularity among fans helped to create a quarterback controversy in New York throughout the season.
Sanchez re-signed with the Eagles last month, agreeing to a two-year deal worth up to $16 million. Despite the crowded situation at quarterback and a busy offseason that saw the Eagles trade Nick Foles to the Rams for Bradford, Sanchez is looking forward to his second season in Philadelphia.
"I knew we were going to have to do something [at quarterback]," said Sanchez, who took batting practice with teammates Friday at Citizens Bank Park. "It's going to be a fun year.
"Coach Kelly knows what he's doing. Don't worry too much. It's only April. Things will fall into place. We'll be just fine."