DETROIT — Wenceel Pérez homered in his first at-bat in his season debut, Jack Flaherty worked six scoreless innings and Riley Greene had three hits and two RBIs as the American League-leading Detroit Tigers beat the San Francisco Giants, 3-1, on Tuesday night.

The Giants also fell to the Tigers, 3-1, in Monday’s series opener.

Pérez, who had missed the entire season due to a lower back injury, hit a 2-0 pitch 351 feet to right field in the second inning for his first homer since Aug. 7.

Greene has 22 RBIs in May, the first time in a calendar month he has knocked in 20 runs, and has 38 RBIs overall. He is hitting .270 with six homers.

Flaherty (3-6) gave up two hits and a walk while striking out eight as the Tigers won their third straight and improved to 36-20. He retired the last 11 batters he faced. Will Vest pitched the ninth for his seventh save.

Webb’s Record Dips to 5-5

Giants starter Logan Webb (5-5) allowed three runs on seven hits and a walk in six innings, striking out 10. San Francisco fell to 2-3 on their current nine-game trip.

Greene gave the Tigers a 1-0 lead with an RBI double in the first. After Pérez homered in the second, Colt Keith led off the third with a triple and scored on Greene’s second hit. He added another double in the fifth before striking out in the eighth.

The Giants scored in the ninth when Heliot Ramos led off with a single and came around on a Wilmer Flores double. Greene made a sliding catch to rob Jung Hoo Lee of a base hit, and Vest retired the next two hitters to end the game.

Key Moment

Giants manager Bob Melvin was ejected by home plate umpire Tony Randazzo after arguing balls and strikes in the fifth inning.

Key Stat

Spencer Torkelson, who leads the Tigers in most offensive categories, went 0 for 4 with three strikeouts. He is hitting .207 with six homers and 30 strikeouts in his last 33 games.

Up Next

The teams finish their three-game series on Wednesday with Detroit RHP Jackson Jobe (4-1, 4.06) facing RHP Landen Roupp (3-3, 3.63).