Darren Oliver hasn't decided if he'll play again in 2012 or retire. Oliver, 41, is still extremely effective, having lowered his ERA each of the last four seasons from 2.88 to 2.71 to 2.48 to 2.29 this season. He made $3.25 million in 2011 and should be able to fetch a couple million for 2012 if he decides to keep playing. "If I do play, it'll be only one more year," said Oliver, who will consider the opinion of his wife and sons when making his final decision. "We'll talk about it. We haven't really even discussed it."