The New York Red Bulls recorded their fifth straight MLS win on Saturday, while the Los Angeles Galaxy lost again.
Eastern Conference leaders the Red Bulls, still without star striker Thierry Henry, came from behind to beat the Montreal Impact 2-1.
Bernardo Corradi and Kenny Cooper traded first-half penalties, before the game appeared to turn in the Impact’s favour on 58 minutes.
Victor Palsson picked up his second yellow card to be sent off, but it was the Red Bulls who responded despite their numerical disadvantage.
Dane Richards struck the winner in the 67th minute, side-footing into the roof of the net from inside the area.
Reigning champions the Los Angeles Galaxy slumped to another loss, a 1-0 defeat to Chivas USA.
Galaxy defender David Lopes was sent off for handling, with Jorge Correa stepping up to net the spot-kick in the 72nd minute.
The Galaxy are eighth in the Western Conference with just three wins from their opening 11 matches.
Sporting Kansas City saw their winless run extended to four matches after a 2-2 draw against the Colorado Rapids.
Teal Bunbury netted a brace in the opening 14 minutes for Kansas City, but Tyrone Marshall and Kosuke Kimura struck after the interval to give the hosts a point.
A Dwayne De Rosario brace led DC United to a 3-1 win at home to Toronto, while Dallas and the Philadelphia Union played out a 1-1 draw.
Alan Gordon’s late equaliser gave the San Jose Earthquakes a 1-1 draw against the Columbus Crew.
A brace from Saer Sene was not enough for the New England Revolution, who were forced to settle for a 2-2 draw at home to the Houston Dynamo.
The Vancouver Whitecaps and the Seattle Sounders also shared the spoils with a 2-2 draw.