BALTIMORE — Aaron Judge made his long-awaited return, but Anthony Santander’s walk-off homer stole the show as the Yankees fell to the Orioles, 1-0, on Friday evening at Camden Yards.

Santander sent a Tommy Kahnle changeup over the right-field wall in the bottom of the ninth inning, breaking through with the only run of the contest after rookie Grayson Rodriguez and four relievers silenced the Bombers’ bats.

Playing his first game since sustaining a torn ligament in his right big toe on June 3, Judge lined out to right field in the first inning, then walked in the fourth, sixth and eighth innings.

The first-place Orioles put on a defensive clinic. Anthony Volpe was robbed of hits twice, by third baseman Ramón Urías in the fifth inning and by the right fielder Santander in the eighth. Second baseman Adam Frazier also took a hit away from Anthony Rizzo in the eighth.

Gerrit Cole continued to bolster his resume as the frontrunner for the American League Cy Young Award, shutting down the Baltimore offense through seven excellent innings.

Cole permitted just three hits, did not walk a batter and struck out five, firing a season-high 110 pitches. His 2.64 ERA paces the AL.