Athletics starter Jarrod Parker left a rehab start with Triple-A Nashville on Friday with an injury to his right elbow, MLB.com’s Jane Lee reports. He had thrown his 87th pitch of the outing. Parker is currently on his way back from Tommy John surgery, which he underwent in March 2014. Friday’s outing was his fourth rehab start, and the Athletics were hopeful to bring him back into the rotation before the end of the month.
Parker, 26, hasn’t pitched in the majors since September 2013. He has a career 3.68 ERA with a 275/127 K/BB ratio in 384 career innings. The Athletics had acquired him in December 2011 from the Diamondbacks in the Trevor Cahill trade.