The Red Sox officially lost left fielder Jason Bay on Monday when he signed a four-year, $66 million deal with the Mets. Boston infielder Kevin Youkilis commented on the signing Tuesday. "It's definitely going to be tough for all of us," Youkilis said. "Jason was a close friend. We enjoyed playing with him. He's a great ballplayer. It's one of those business moves on each side, the Red Sox and Jason. It just didn't work out right. I wish him the best in New York and hopefully we get to see him in the World Series." The Boston Herald is reporting that the Red Sox had discussions with Bay right up until he agreed to join the Mets.