(NEW YORK) -- MLB Union Leader Michael Weiner passed away Thursday at the age of 51, just 15 months after he was diagnosed with an inoperable brain tumor.
Weiner was known as a tough labor lawyer who took over as head of the MLB Players' Association four years ago. The Union announced Weiner passed away at his home in Mansfield Township, N.J.
Former MLB All-Star Tony Clark took over Thursday as acting executive director. He is likely to be approved as Weiner's successor when the union's board meets during the first week of December.
"Words cannot describe the love and affection that the players have for Michael, nor can they describe the level of sadness we feel today," Clark said in a statement. "Not only has the game lost one of its most important and influential leaders in this generation, all involved in the game have lost a true friend."
Weiner is survived by his wife, the former Diane Margolin, as well as three daughters.
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