IN YANK PEN,

The Yankees gave Aroldis Chapman the richest contract for a relief pitcher ever at five years, $86 million for nights like Sunday, when they want to count on the flamethrowing lefty to shut the door with a one-run lead against the rival Red Sox.

Chapman let his team down at a critical juncture. After blowing a save by allowing a tying solo homer to Rafael Devers in the ninth, Chapman was charged with a run in the 10th inning and took the loss as the Yankees took a devastating 3-2 extra-innings loss to the Red Sox, falling 5.5 games behind Boston for the AL East lead. Chapman has given up six runs (five earned) in six appearances this season against the Red Sox and took a blown save and loss in Boston on July 14.

With one out in the 10th, Chapman hit Jackie Bradley Jr. and walked Eduardo Nuñez before giving way to Tommy Kahnle, who gave up an RBI single to Andrew Benintendi with the bases loaded. Todd Frazier’s sacrifice fly in the eighth had given the Yanks a 2-1 lead.

The Yankees managed to get through Chris Sale with the game tied 1-1. Sale struck out 12 in seven innings, allowing one run on four hits and two walks, but his offense only provided him with two hits.