The Montreal Impact remained unbeaten in the group stage of the inaugural CONCACAF Champions League, nudging past CD Olimpia 2-1 at Tegucigalpa, Honduras, on Wednesday night.
Roberto Brown scored twice for the Impact, including the winning goal on a penalty kick in the 70th minute.
Montreal improved to 2-0-1 and leads Group C with seven points.
Atlante FC of Mexico (1-0-1) trails the Impact with four points, heading into Thursday's match at Cancun with Joe Public FC from Trinidad and Tobago (0-2-0).
Atlante is one of the premier sides from Mexico, winning the CONCACAF Champions Cup, the forerunner to Champions League, in 1983, and placing second in 1994.
Olimpia (1-2-0) sits third in the group with three points.
Brown staked the Impact to a 1-0 lead in the third minute as he headed a corner kick from midfielder Joey Gjertsen behind Olimpia keeper Noel Valladares from six yards out.
Olimpia tied it 1-1 in the 34th minute on a terrific free kick from striker Danilo Turcios, who curled it beyond the reach of keeper Matt Jordan from the top of the box and sending the pro-Lions crowd at Estadio Tiburcio Carias Andino into a frenzy.
However, Brown restored Montreal's lead on the aforementioned penalty kick, blasting it by a diving Valladares with authority.
Turcios was later ejected for a late challenge on Impact midfielder Leonardo Di Lorenzo in the 87th minute.
Olimpia's lineup was further reduced to nine men when Oscar Boniek Garcia was tossed for decking DiLorenzo with a forearm to the face.
DiLorenzo was removed from the pitch on a stretcher, but he returned — appropriately, in injury time — with a bandage on his forehead.
Montreal posted a pair of impressive shutouts in qualifying for the group stage.
The Impact held Nicaraguan champion Real Esteli FC to a 0-0 draw in the second leg of their preliminary round playoff at Carlos Miranda Stadium in Comayagua, Honduras, on Sept. 2.
That result, coupled with a 1-0 triumph in the first leg at Montreal's Saputo Stadium, was enough for the Impact to qualify for the group stage on aggregate.
The championship round, featuring the two top teams from each of the four groups, commences next Feb. 24.
The Impact won the right to represent Canada in Champions League with impressive showings in a national tournament with Toronto FC of Major League Soccer and United Soccer Leagues rival Vancouver Whitecaps.