Burke, Medunjanin score in Union’s 2-0 win over Impact
Burke headed in a pass from Raymon Gaddis in the 43rd minute, and David Accam fed Medunjanin for a goal off the left post in the 88th.
Burke was sent off in the 58th minute, and Montreal’s Daniel Lovitz was ejected in the 67th.
Philadelphia (2-5-2) lost its first four road games, being outscored 9-0.
Montreal (3-8-0) has lost two in a row and six of seven.