Rivera (0-1) took the loss Wednesday against the Orioles, allowing four runs on three hits and two walks in two-thirds of an inning. He struck out one.
Rivera couldn't escape a laborious first inning in the nightcap of Wednesday's twin bill, tossing 41 pitches before his outing mercifully came to an end. Ranger Suarez (groin/illness) is on the cusp of coming off the injured list, so Rivera may not be sticking around with the major-league roster for much longer. The rookie left-hander has yet to work into the fifth frame in any of his four outings for Boston, recording a 6.30 ERA, 1.40 WHIP and 10:6 K:BB over 10 innings.