NEW YORK -- The players' association filed a grievance Tuesday over the release of pitcher Shawn Chacon, saying the team's decision to terminate his contract was without just cause.

Chacon cleared waivers and was released Monday, five days after a physical altercation with Houston Astros general manager Ed Wade in the clubhouse.

Chacon had a $2 million salary this year, and the decision to terminate the contract meant $983,607 won't be paid. He also lost the chance to make up to $1 million in performance bonuses based on innings.