Hall of Fame catcher Gary Carter, who was diagnosed with brain tumors last May, has died, according to a tweet from Major League Baseball:

We mourn the passing of Hall of Fame catcher Gary Carter, who passed away today at the age of 57.

— MLB (@MLB) February 16, 2012

Carter played 19 major league seasons, mostly for the Montreal Expos and New York Mets. His best seasons came for the Expos, and he was the starting catcher for Montreal’s only playoff team in 1981. He was traded to the Mets after the 1984 season and was behind the plate when the Mets won the World Series over the Boston Red Sox in 1986.

He finished his career with a single season with the Giants and one with the Dodgers, before a final reunion year with the Expos in 1992.

Carter had 2,092 career hits and 324 home runs, and was elected to the Hall of Fame in 2003, becoming the first player to enter the hall wearing an Expos cap on his plaque.