Baseball’s biggest injured list grew on Friday when the Houston Astros announced that starter Brandon Walter had been diagnosed with left elbow inflammation. Walter, who had become a mainstay in Houston’s injury-ravaged rotation, is now the 18th Astros player to land on the injured list. No team in the sport has more.

The Houston Astros placed left-handed starter Brandon Walter on the 15-day injured list, retroactive to Thursday, with left elbow inflammation. Walter becomes the 18th Houston player currently on IL.

Houston starter Brandon Walter has elbow inflammation and becomes the 18th player currently on the AL West-leading Astros' injured list.