OAKLAND — A’s rookie left-hander Sean Manaea left Monday’s game in the top of the fifth inning with a forearm injury.
Manaea had just given up a one-out home run to Shin-Soo Choo when manager Bob Melvin visited the mound along with assistant athletic trainer Brian Schulman. After a brief discussion, Manaea headed for the dugout. He was later announced as having a pronator muscle strain in his forearm.
That scene put a damper on an otherwise fantastic start to the A’s night, as they took a 10-2 lead over the first-place Texas Rangers into the bottom of the fifth. Khris Davis and Josh Phegley each hit three-run homers to key the A’s huge lead.
Daniel Coulombe entered in relief of Manaea, the A’s top pitching prospect who went 4 1/3 innings and gave up two runs on four hits. Manaea struck out five and walked one.