It took only a week for Red Sox manager Bobby Valentine to stir things up in his new team's rivalry with the Yankees. "No, I hate the Yankees. I don't want to waste this valuable time talking about the Yankees. This is too valuable," a smiling Valentine said Wednesday when asked about his new rival. "I told Joe Girardi I used to love them, but now I hate them." Girardi, New York's manager, will face Valentine for the first time during the regular season on April 20 in Boston -- the 100th anniversary of the first game at Fenway Park. "Bobby is going to be probably a little bit different type of manager than Terry was because every manager is going to have a different philosophy than the last guy," Girardi said. "A lot of your moves as a manager are dependent on what type of players you have. If you've got a bunch of guys that hit the ball out of the ballpark and are slow to first base, you're not all of a sudden going to become a base-stealing team. So you have to look at the lineup. But time will tell how he's going to manage that club, and it's our job to pay attention."