In N.F.L. parlance, Keith McCants was a “can’t miss.” A relentless and powerful athlete, he was a first-team all-American linebacker at Alabama and was drafted fourth overall in 1990 by the Tampa Bay Buccaneers. His success seemingly guaranteed, the team made him the highest-paid defensive player in the league.
But McCants soon became known by a less flattering N.F.L. moniker: “draft bust.” Days after being chosen by the Buccaneers, he had knee surgery. A year later, he had to learn a new position when he was moved from linebacker to defensive end. The injuries and frustrations mounted as he tried to meet people’s outsized expectations.