Zach McAllister was recalled to make the start in Tomlin's place.
In addition, Jose Lopez is back on the roster, replacing Jason Donald, and to make room for Lopez on the 40-man roster, Nick Weglarz was Designed for Assignment.
So in summary:
Josh Tomlin to 15-Day DL
Jason Donald Optioned to AAA
Purchased the Contract of Jose Lopez and Recalled from AAA
Designated Nick Weglarz for Assignment