Cincinnati Reds right fielder Jay Bruce's injury is more serious than initially thought.

Bruce was scratched from the starting lineup for Sunday's finale of a four-game series against the Milwaukee Brewers due to left knee soreness. But he later was diagnosed with a partially torn meniscus in his left knee which required surgery. Bruce is expected to miss at least one month.

Bruce pinch-hit in the seventh inning on Sunday and struck out on three pitches. He was examined by doctors later that evening and had surgery Monday morning.

Bruce is batting .216 with three home runs and 14 RBIs in 102 at-bats.

---The San Francisco Giants placed right-hander Matt Cain on the 15-day disabled list.

Cain missed his last start after cutting the tip of his right index finger with a knife while making a sandwich before the game. He was initially expected to miss just the one start, but the team decided to place him on the DL. The move it backdated to April 25, meaning he could come off and face the Dodgers in Los Angeles this weekend.

---Yasiel Puig was not in the Los Angeles Dodgers' starting lineup Monday night, a day after smashing into the outfield wall trying to make a game-saving catch.

Puig hit his head and lower left leg against the fence as he tried to track down Jeff Baker's game-winning double in the bottom of the ninth of Sunday's 5-4 loss at Miami. The ball deflected off the wall and hit Puig in the face, and he fell to the ground.

Puig passed all initial concussion tests and has been listed as day to day.

---The Cleveland Indians placed designated hitter Jason Giambi on the 15-day disabled list with a right calf strain.

Giambi left Saturday's game with cramping in right calf. He was held without a hit in his first 10 at-bats to start the season and begins his second stay on the DL this season.

The Indians also reinstated catcher Yan Gomes from the paternity list prior to Monday's game against the Minnesota Twins. Gomes missed two games while on paternity leave following the birth of his daughter, Brooklyn Mae.