Oakland Athletics first baseman Matt Olson (hand) will come off the injured list on Tuesday against the Reds. Olson had 29 home runs and 84 RBI last year, but he broke the hamate bone in his right hand on March 21 in the two-game series against the Mariners in Japan. In a corresponding move, the A's are likely to let veteran first baseman Kendrys Morales go. [...]