Atlanta United climbed to the top of the Eastern Conference in MLS, while the LA Galaxy were beaten by the New York Red Bulls on Saturday.
Braces from Miguel Almiron and Kevin Kratz saw Atlanta to a 4-1 win over the Montreal Impact.
Montreal took a surprise lead in the 13th minute, Saphir Taider heading in the opener.
The Impact held onto that advantage until the final 20 minutes, when Atlanta struck four times.
Almiron netted a penalty after a handball in the area before Kratz curled in a wonderful 25-yard free kick.
After Almiron completed his brace, Kratz produced from another free kick to seal Atlanta's win and move the club two points clear atop the Eastern Conference.