LOS ANGELES — Sporting a pair of tight pants in his return from Tommy John surgery Wednesday, Giants left-hander Robbie Ray put the squeeze on the Dodgers.

After being stretched to the limit in a rusty first inning, Ray found his stride in his San Francisco debut and did not allow a hit over five innings in an 8-3 victory over the Dodgers. He threw 86 pitches and ended his night with a 96 mph fastball to strike out Shohei Ohtani and end the fifth inning.

It was a challenging first inning for Ray, who had two walks, two hit batters and two wild pitches to the first five batters of the game as the Dodgers took a 1-0 lead without the aid of a hit. But he settled in from there.

Ray’s outing gave the Giants’ offense time to come to life. Matt Chapman hit a home run and drove in two runs. Heliot Ramos and Mike Yastrzemski also had two RBIs each. Ramos had a two-run single in a six-run eighth inning as the Giants put the game away.

Rookie Tyler Fitzgerald saw his five-game home run streak come to an end, but he doubled and scored two runs.

The Dodgers didn’t have their first hit until a Chris Taylor double with two outs in the seventh inning against Tyler Rogers.

Giants left-hander Erik Miller struck out Ohtani in the eighth inning, his fifth strikeout in five lifetime at-bats against the Dodgers star.