Concussions

1m

NEW YORK -- The NFL has demanded The New York Times retract a story that called the league's concussion research flawed and likened the NFL's handling of head trauma to the t

3m

The NFL says reported concussions rose 58 percent in regular-season games to the highest number in any of the past four years.

11m

OAKLAND -- When NBA union chief Michele Roberts watched Stephen Curry return to a game after his head slammed against the floor and he walked woozily to the locker room, she imm