Situation: The Yankees and the Oakland Athletics are tied in the bottom of the ninth. Dave Winfield is on third base with one out; Bobby Meacham is the batter.
Tommy John, the Oakland pitcher, suspects a squeeze bunt is planned and throws a pitchout to C Mike Heath. Winfield breaks with the pitch but is frozen in his tracks when Meacham throws his bat at the wide pitch and misses.
Heath runs Winfield back to third but throws the ball too soon and too high to 3B Tony Phillips. Winfield anticipates the early throw and breaks past Heath for home. Phillips, who had caught the catcher's throw off-balance, rushes his throw to Tommy John, who is covering home, but the throw is high and to the foul territory side of home plate. Winfield avoids John's tag and scores the winning run.

How do you score the winning run? Steal or error?