David Wells said he definitely will have arthroscopic surgery on his right knee, which required three cortisone injections this season. Wells's two-year deal calls for $4 million guaranteed next season, with the chance to earn $5 million more in bonuses. Still, he said he's pondering retirement. ''Well, I know it's there," Wells, 42, said of the guaranteed money. ''To me, it's just a matter of what I decide. I'll see what my wife wants, sit down with her. I've been playing long enough. Let her have a say in what I do. ''I don't have to come back. They can give the money to Papelbon."