Ryan Mountcastle homered as part of a three-run sixth inning and the Baltimore Orioles rallied past the visiting Boston Red Sox 4-2 on Tuesday night.

The Red Sox (88-69) are two games behind the New York Yankees (90-67) for the first AL wild card and half a game ahead of the Seattle Mariners (88-70) for the second spot. The Toronto Blue Jays (87-70) are a full game back for that second berth.

Hunter Renfroe had two of Boston's three hits, including a home run, and Kyle Schwarber also homered for Boston, which has lost four straight after winning seven in a row.

Marcos Diplan (2-0) allowed a solo home run and struck out three in two innings for Baltimore (51-106); Cole Sulser pitched a 1-2-3 ninth for his eighth save as Baltimore relievers allowed one hit in five innings.

Pedro Severino had three hits, including an RBI single that gave the Orioles a 3-2 lead.

Boston starter Chris Sale (5-1) pitched 5 1/3 innings, allowing three runs on four hits and a walk while striking out six.

The Red Sox took a 1-0 lead when Schwarber hit the first pitch of the second inning from Bruce Zimmermann out to center for his 32nd home run.

Zimmermann, making his first start since June 13, went the first four innings for Baltimore, giving up a run on two hits in his return from the injured list.

Renfroe led off the sixth against Diplan with his 29th home run to make it 2-0.

Kelvin Gutierrez led off the Orioles' sixth with an infield single, just Baltimore's second hit of the night. With one out, Mountcastle jumped on a first-pitch changeup, lifting a home run to left -- his 32nd homer -- tying the score.

The Orioles weren't done as Austin Hays singled and Hansel Robles replaced Sale. Trey Mancini (two hits) singled Hays to second and Severino bounced a single past third baseman Rafael Devers to score Hays with the go-ahead run.

Baltimore added an insurance run in the eighth when Mancini, Severino and Ryan McKenna all singled with two outs.

--Field Level Media