The Eagles had done their research prior to trading for Sam Bradford this offseason. They have found that there is only a 10-to-12 percent chance of re-injury for players that tear their ACL. Head coach Chip Kelly went into great detail about why they traded for Bradford. "We looked at everything, and we knew we weren't going to pick No. 1 or No. 2. So, and I've said it before, if you're not going to pick one or two, how do you go get a quarterback?" said Kelly. "Peyton Manning switched teams because of an injury.