McHugh was diagnosed with a posterior impingement in his right elbow Saturday and will be shut down for six weeks.
McHugh will be re-evaluated at the end of the six-week period, but a clean MRI on Friday has alleviated any concerns of a UCL problem. Regardless, this is devastating news considering the right-hander was actually rehabbing from a shoulder injury when he first felt the discomfort. The Astros can only hope that the solution is non-surgical and that McHugh will be able to return sometime in early June, but they'll have to carry on with Mike Fiers and Joe Musgrove in the rotation for now.