Yankees pitcher Joba Chamberlain will test his shoulder on Saturday during a 30-pitch bullpen session, according to The New York Daily News. All of his pitches will be either fastballs or change-ups. It will mark the first time he's been on the mound since August 4th against Texas, when he left the mound with tendinitis in his rotator cuff. "We'll wait to see how he does (today) and then we'll go from there," manager Joe Girardi said. "At this point, we take it day by day."