N.F.L. Faces New Injury Crisis With Hamlin’s Collapse

Pro football has never been more popular, or lucrative, but the collapse of Damar Hamlin during a prime-time game was a reminder of the sport’s inherent risk.

Video player loadingThe N.F.L. was facing one of its worst crises in decades as Buffalo Bills defender Damar Hamlin remained in critical condition on Tuesday after collapsing during a prime-time game in Cincinnati, raising fresh questions about ever-present serious injury in America’s biggest sport.

Hamlin, 24, collapsed in the first quarter of a highly anticipated matchup with the Bengals on Monday night, forcing the league to suspend the game. As Hamlin lay on the field motionless, many of his teammates in tears nearby, doctors pumped…