Mark Mulder may opt for retirement. A former teammate of Mulder's said Monday that he's "done," but the pitcher's agent is refuting reports that his client has made a decision. Oakland infielder Eric Chavez claims that Mulder is done. "I know one thing for sure was that if Mark didn't feel right, he wasn't going to come back," Chavez said. "He wanted to come back 100 percent and didn't want to suffer like he has been the last couple of years. Once you've played a game at a certain level and dominated, it becomes a lot tougher to come back. You want to tap into your abilities and know you can still perform well. He wasn't going to do it if he knew he couldn't be successful and contribute. "It must have been a really hard decision, especially considering how short his career was. I can definitely relate to what he's been going through, and I know how hard it is to weigh all the factors and decide if it's worth it to go through with everything."