Less than two hours before the American League East rivals were due to play the second game of their Saturday doubleheader, Rafael Devers’ 10th inning RBI single – his second walk-off of the home stand – completed a 6-5 win.

Instant reactions from the Red Sox’ 2-1 loss to Baltimore Orioles in Game 2 of a doubleheader Saturday at Fenway Park:

Over time, Saturday could be remembered as the day the Red Sox called up star prospect Marcelo Mayer from the minors. But the Sox still had business to take of as Mayer made his way from Worcester to Boston for the second game of Saturday’s doubleheader against the Orioles.

One of the Red Sox’s top prospects will make his long-anticipated MLB debut Saturday night against the Baltimore Orioles.

1) DH Rafael Devers walked it off. His RBI single up the middle against Orioles lefty Gregory Soto scored the automatic runner (Ceddanne Rafaela) from second base. It was his fifth career walkoff RBI.

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Red Sox third baseman Alex Bregman was removed in the fifth inning of a doubleheader opener against the Baltimore Orioles because of right quadriceps rightness and hopes he doesn’t go on the injured l