Major League umpire Eric Cooper has died at the age of 52, the league announced on Sunday.

"This is a very sad day across Major League Baseball," MLB commissioner Rob Manfred said in a statement. "Eric Cooper was a highly respected umpire, a hard worker on the field and a popular member of our staff. He also served as a key voice of the MLB Umpires Association on important issues in our game. Eric was a consistent presence in the Postseason throughout his career, including in this year's Division Series between the Yankees and the Twins. He was known for his professionalism and his enthusiasm, including for our international events.