Nationals right-hander Aaron Barrett requires surgery on his right elbow, manager Matt Williams told reporters, including MASNsports.com’s Dan Kolko (Twitter link). Kolko adds that it’s “looking like it’ll be Tommy John” surgery. MLB.com’s Bill Ladson tweets that Tommy John is “most likely” to be the outcome for Barrett.
The 27-year-old Barrett has been a solid contributor to the Washington bullpen over the past two seasons, firing 70 innings of 3.47 ERA ball to go along with a 10.8 K/9 rate, a 3.5 BB/9 rate and a 44.9 percent ground-ball rate.