(John McDonnell/The Washington Post)

Wilson Ramos re-injured his left hamstring while trying to beat out a grounder in the fourth inning of Tuesday’s 4-2 win over the San Francisco Giants, according to Manager Davey Johnson. Ramos raced down the first base line on a comebacker to starter Madison Bumgarner that ricocheted to third baseman Pablo Sandoval, whose throw nabbed Ramos at first base. The 26-year-old catcher walked slower than normal back into the dugout.

“It’s the third time on the same leg, so a little concerned about it,” Johnson said.

Ramos’s groundout plated a run in the bottom of the fourth inning, but rain delayed the game just as the top of the fifth inning began. Ramos didn’t return to the game after the 77-minute rain delay, replaced behind the plate by Kurt Suzuki.

Ramos was examined in the trainer’s room and received treatment following the game. Johnson said the injury wasn’t “too bad” and that the team’s medical staff felt Ramos was day-to-day.  “We’ll have to see,” Johnson said. “I doubt if he’s available [Wednesday].”

Ramos has already missed 58 games this season because of two separate strains of his left hamstring. His second injury landed him on the disabled list for 44 games. Since his return on July 4, Ramos has been an important piece behind the plate and more so with his bat. He is hitting .309 (30 for 97) with five homers and 22 RBI in 27 games.