Actor/comedian/director Billy Crystal has been signed by his beloved New York Yankees for one day and will don no. 60 on Thursday's exhibition game against the Pittsburg Pirates in Tampa, Florida. Crystal--who is a lifelong fan of the team and directed the Emmy-nominated film 61* about the Mickey Mantle-Roger Maris home run race that took place during the 1961 season--will turn 60 the following day. Yankees manager Joe Girardi has yet to decide what position Crystal will play.