From the Sports Guy, Pg 2 section at ESPN:
Q: The Sox should just tell Manny he got traded to Boston. He won't know the difference.
--Mike H, Noxen, N.H.
SG: I love this idea. They could go all out with this: Call him up, tell him he's been traded to Boston, have him pack up all of his stuff, fly him in circles in the team jet for five hours, then drop him off in Cambridge and tell him he's on the West Coast. He might fall for it. By the time the season starts, it will be too late for him to complain. I really think this could work.