Red Sox manager Bobby Valentine in a television interview on Sunday questioned the commitment of third baseman Kevin Youkilis, a comment that could potentially strain his relationship with the three-time All-Star. "I don't think he's as physically or emotionally into the game as he has been in the past for some reason,'' said Valentine, speaking in the dugout before Sunday's game and shown on WHDH-TV's SportsXTra. "But [on Saturday] it seemed, you know, he's seeing the ball well, got those two...