1.   Doctors believe there is a disk fragment floating around in his back.

2.   Haley had surgery on his back a week ago to remove a disk fragment, his third back surgery in less than three years.

3.   Haley, who had a disk fragment removed from his back in California on Thursday, flew back to Dallas on Monday.

4.   Thursday, Reynolds underwent a microdiscectomy, which entails removing disk fragments that were pressing on a nerve.