Right-hander Mike Mussina (right elbow) said he felt fine after throwing 100 pitches in a simulated game off a bullpen mound Friday. He could rejoin the rotation next Thursday in right-hander Shawn Chacon's spot. "I'm encouraged," Mussina said. "When you turn it up as close to 100 percent as you can, you don't really know what you are going to get when you haven't done it for almost three weeks." Manager Joe Torre will to see how Mussina feels Saturday before making a decision. "He threw hard, the hardest he's thrown," Torre said. "He did everything he wanted to do." Mussina last pitched Aug. 29.