SAN FRANCISCO—Stephen Curry went down with a left foot injury late in the first half and Golden State coach Steve Kerr didn’t like Marcus Smart’s lunging move at the reigning NBA scoring champ. Smart got an earful from Kerr, then they chatted again after the Boston Celtics beat the Warriors 110–88 on Wednesday night. “I thought it was a dangerous play. I thought Marcus dove into Steph’s knee,” Kerr said. “That’s what I was upset about. Lot of respect for Marcus, he’s a hell of a player, gamer, competitor. I coached him in the World Cup a few summers ago. We talked after the game, we’re good. I thought it was a dangerous play, just let him know.” Curry was injured with 4:19 remaining in the second quarter along the sideline while scrambling for a loose ball as Smart made a diving lunge on the play and landed on the …