Mike Carp delivers a pinch-hit single in the eighth inning to lift the Boston Red Sox to a 4-3 triumph over the Baltimore Orioles. Boston trailed 3-1 before tying the score with two runs in the seventh. (Elise Amendola/Associated Press)

Leading by two runs in the seventh inning, the Baltimore Orioles bullpen allowed the Boston Red Sox to tie it and then Tommy Hunter gave up a go-ahead bloop single to Mike Carp in the bottom of the eighth as Boston rallied for a 4-3 win on Wednesday night.

The Orioles (70-61) have dropped two straight to the division-leading Red Sox (79-55) and trail them by 71 / 2 games in the American League East race.

The heartbreaker comes a night after getting walloped, 13-2.

Hunter (3-3) allowed a two-out double in the eighth by Jarrod Saltalamacchia, who then scored when pinch hitter Carp’s blooper just eluded the grasp of third baseman Manny Machado.

Former Oriole Koji Uehara shut down his old club in order in the ninth for his 14th save.

Baltimore, which was 29-9 in one run games last year, is 14-24 this season in that situation.

In his sixth start since being traded to the Orioles from the Houston Astros on July 31, right-hander Bud Norris threw way too many pitches — 105, and only 59 for strikes — in 51 / 3 innings, but he held the lead when he left the game with one on and one out in the sixth.

Francisco Rodriguez threw one pitch in the sixth and induced a double play to preserve the pitching line for Norris, who allowed four hits, four walks and one run while striking out seven. The four walks tied Norris’s season high, which was set July 19 while he was with Houston.

Things turned in the seventh, though, when Rodriguez gave up a single and a double, retiring just one batter before being removed.

Darren O’Day came on and got a lineout before yielding a two-run single to Dustin Pedroia to tie it at 3. Left-hander Brian Matusz got David Ortiz to fly out to end the seventh, but the damage was done.

— Baltimore Sun