31 Erik Kratz, C

Phillies catcher Erik Kratz will miss six-to-eight weeks of action after undergoing surgery on his left knee Wednesday, the Philadelphia Inquirer reports.

Kratz, who was placed on the 15-day disabled list Sunday, has hit .229/.290/.436 with eight home runs and 22 RBI in 140 at-bats. He served as the team's starting catcher through most of April while Carlos Ruiz served a 25-game suspension.

The Phillies announced Monday that catcher Erik Kratz suffered a tear in the medial meniscus in his left knee, after undergoing an MRI. The team will not reveal a timeline for his recovery until after surgery, but the Daily Times reports that a typical recovery time for this surgery is up to three months. 

Phillies catcher Erik Kratz, who was placed on the 15-day disabled list Sunday with a left knee injury, is flying back to Philadelphia to undergo an MRI Monday, according to MLB.com. Humberto Quintero has taken over as the starting catcher with Kratz and Carlos Ruiz (hamstring) on the disabled list.

The Phillies announced Sunday catcher Erik Kratz was placed on the 15-day disabled list with a left knee injury. Steven Lerud was summoned from Triple-A Lehigh Valley to take his roster spot.

Kratz suffered the injury Saturday against the Brewers. He had been filling in for injured starter Carlos Ruiz, who might begin a rehab assignment this week. Kratz was hitting .267 (20 for 75) with three doubles, six home runs and 15 RBI in his last 23 games (21 starts).

Phillies catcher Erik Kratz told Comcast SportsNet Philadelphia that he felt a "pop" in his left knee following Saturday's 4-3 loss to the Brewers.

Kratz played the entire game and finished 0 for 4 with two strikeouts. He is expected to be examined by doctors in the near future. Manager Charlie Manuel told reporters Kratz's injury does not look good. With Carlos Ruiz already on the disabled list, Humberto Quintero may be the only healthy catcher remaining on the roster.