Nearly three months after being acquired from the San Francisco Giants in the Rafael Devers trade, Kyle Harrison finally made his Boston Red Sox debut on Wednesday.

It was well worth the wait.

With Payton Tolle lasting just two innings against the Athletics, the Red Sox needed some bulk innings from their bullpen. Alex Cora summoned Harrison in the bottom of the sixth with Boston trailing 4-3 in the series finale at Sutter Health Park.

The 24-year-old lefty dazzled in his first Major League appearance since June 10, scattering three hits and no walks with two strikeouts over three scoreless innings. The Red Sox lost 5-4 after he departed, however, when Aroldis Chapman allowed the game-winning run to score in the bottom of the ninth.

Harrison’s command was excellent, as he threw 35

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