Robles will miss the opening two games of the season, at Kansas City. The Mets will play with a 24-man roster those days.
Robles had been handed the suspension for throwing in the direction of the head of Philadelphia's Cameron Rupp with a quick pitch on Sept. 30. He appealed, keeping him eligible for the remainder of last season.
Robles' availability for those two games in Kansas City is not a major deal, as the bullpen will be fresh at the start of the season. The Mets also have three days off during the opening week of the season.