The Red Sox starter said, “Tonight it was definitely a rocky one. I had no idea where really anything was going.”

May's solid outing of two runs over six innings was wasted when Jovani Moran and Jordan Hicks gave up four runs late in the game.

Boston also recalled outfielder/infielder Nate Eaton from Triple-A Worcester, placed outfielder Rob Refsnyder (left oblique strain) on the 10-day IL and designated catcher Ali Sánchez for assignment. Sánchez spent six games on the active roster as a third catcher, recording just one plate appearance.

First baseman Nathaniel Lowe signed with the Boston Red Sox, the club announced Monday, after it finalized a deal for a prorated portion of the major league minimum, and the veteran appeared as a pinch hitter during a 6-3 loss to the Baltimore Orioles.