Adam Greenberg heads out of the dugout for batting practice before a baseball game against the New York Mets in Miami, Tuesday, Oct. 2, 2012. The Marlins signed the former Chicago Cubs prospect to a one-day contract effective Oct. 2. He is to bat as a pinch-hitter against the Mets. (AP Photo/Alan Diaz)

Photo by: Alan Diaz

Adam Greenberg heads out of the dugout for batting practice before a baseball game against the New York Mets in Miami, Tuesday, Oct. 2, 2012. The Marlins signed the former Chicago Cubs prospect to a one-day contract effective Oct. 2. He is to bat as a pinch-hitter against the Mets. (AP Photo/Alan Diaz)