New York Yankees right-hander Masahiro Tanaka lasted just four-plus innings in a no-decision as the Boston Red Sox clinched their third straight American League East title with an 11-6 victory Thursday night at Yankee Stadium.

Tanaka, who won his last three starts, took the mound in the fifth but was pulled from the game after yielding back-to-back hits to the first two batters he faced -- a double to Mookie Betts and a single to Andrew Benintendi.

Yankees teammate Giancarlo Stanton hit a grand slam in the bottom of the fourth that erased a two-run deficit, but in the seventh, Red Sox center fielder Jackie Bradley Jr. hit a clutch homer off Chad Green (8-3) to ignite a three-run rally.

Betts put the Yankees away in the eighth when he hit a three-run blast for his 30th homer of the season.

(Tanaka is pulled during the fifth inning)

"They were better, no question," said Tanaka, who gave up five runs on eight hits while striking out three and walking none.

"I would throw a good pitch but they would hit back. I made adjustments and did what I could. My thoughts are now on my next outing," he said.

Steven Wright (3-1) earned the win for working three scoreless innings.

At Oakland Coliseum, Shohei Ohtani went 0-for-2 with a walk and Junichi Tazawa allowed a run on two hits for the Los Angeles Angels, who were hammered 21-3 by the Oakland Athletics in their worst loss in franchise history.

The Athletics had 22 hits against six Los Angeles pitchers, including four doubles and three home runs, and closed the gap against the AL West-leading Houston Astros to 3.5 games with nine left to play.

(Tanaka reacts after allowing a two-run single to Betts in the second inning)