Montreal, QC (SportsNetwork.com) - Montreal Impact midfielder Justin Mapp will miss four months of action after suffering a fracture and dislocation of his right elbow.

Mapp suffered the injury in the 82nd minute of Montreal's season-opening 1-0 loss to D.C. United on Saturday when he came together in a challenge with United goalkeeper Bill Hamid and landed awkwardly on his arm.

Mapp, 30, just entered his fourth season with the Impact, where he has continue to be one of the premier wingers in MLS.

He will remain one game shy of 300 regular season appearances for the time being, with 22 goals and 65 assists to his name since entering the league in 2002 with D.C. United.