Washington Nationals right-hander Joe Ross landed on the 10-day injured list Sunday with a partial tear of the ulnar collateral ligament in his right elbow.
Ross, 28, is 5-9 with a 4.17 ERA in 20 games (19 starts) this season. He has struck out 109 batters and walked 34 in 108 innings.
His injury designation is retroactive to Thursday. He allowed four runs on six hits in five innings during an 8-7 loss to the New York Mets on Wednesday.
In a corresponding transaction, the Nationals recalled outfielder Lane Thomas from Triple-A Rochester.
Thomas, 25, was acquired in a July 30 trade with the St. Louis Cardinals in exchange for left-hander Jon Lester.
Thomas appeared in 32 games for the Cardinals this season, batting .104 (5 for 48) with one RBI.
–Field Level Media