The Achilles tendon connects the calf muscle to the heel bone. Despite being the strongest tendon in the body, it can be injured, especially in athletes. Most injuries heal on their own, though some may require surgery. Follow the links below to find WebMD's comprehensive coverage about how Achilles tendon injuries occur, what the Achilles tendon looks like, how to treat injuries, and much more.
Miller was filling in for injured quarterback Cade McNown in the Bears' 20-3 loss to the Buffalo Bills on Nov. 12. He was in the middle of a run when the injury happened.