What happened: Patrick Mahomes can participate in every training camp period under his full medical clearance. He said the rehabilitation forced him to concentrate on pocket movement and other small details while rebuilding his game.

Why it matters: The ACL tear ended his season during a Week 15 loss that also eliminated his club from playoff contention. The Sept. 14 opener gives him more than seven weeks to progress from practice work to game readiness.

What to watch: His workload and movement in full-team periods will be the next test as he pursues clearance for regular-season play.