Chip Kelly has been encouraged by the development of Tim Tebow since signing this offseason with the Philadelphia Eagles.

"I have seen an improvement from Tim since the day we got him in terms of his knowledge of what we're doing, understanding where everybody is," Kelly said, via the Delaware County Times. "There's a whole process, and for him what we have done is different than what he's done anywhere else.

"So in terms of learning our terminology and how we do things, I think each week you've seen an incremental bump in him, so we're excited to see where that takes him and it'll be a good competition as we get into August."

Sam Bradford is the presumptive start for the Eagles with Mark Sanchez as the backup.

When Tebow first arrived in Philadelphia, per the Allentown Morning Call, he "looked like a high school player." After two months in Kelly's offense, though, "he's improved steadily to the point where he's a legitimate threat to win the No. 3 job from Matt Barkley."