Head coach Chip Kelly announced prior to the start of Friday's training session that quarterback Sam Bradford will not play in the preseason opener against the Indianapolis Colts. Instead, Bradford is scheduled to make his preseason debut next week when the Baltimore Ravens come to Lincoln Financial Field.

Kelly said that this was his decision. He felt that Bradford has only done two weeks of 11-on-11 drills and wanted to bring him along at the right pace. When Kelly spoke with Bradford, the quarterback was not happy with the decision. Bradford did not start the preseason opener last year for St. Louis either when he was coming back from his first ACL injury.

Tight end Zach Ertz will not play in the preseason with a core muscle injury, which is not a sports hernia. Ertz met with Dr. William Meyers, a Philadelphia-based specialist. It is unknown whether or not Ertz will have a procedure done. Kelly is confident that Ertz will be ready for the regular season opener in Atlanta.

According to Kelly, the starters will only play eight to 10 snaps. Mark Sanchez will start which means that fans will see a lot of Matt Barkley and Tim Tebow (Sunday 1 PM, NBC 10 and 94 WIP).

Outside of quarterback, there hasn't been any other decisions about the position groupings. The next two days of training sessions will determine those.

Linebacker Kiko Alonso is still sidelined with a concussion. Kelly added that the team has not yet asked doctors to clear Alonso because there is no rush at this time. (UPDATE: The Eagles announced after practice that Alonso has indeed begun the concussion protocol, but has not yet fully passed.) Defensive end B.J. McBryde and linebacker Brandon Hepburn will also not practice. There was no update given on safety Jerome Couplin, who has not yet returned following an appendectomy. Running back DeMarco Murray will practice on Friday.