Uruguay international Nicolas Lodeiro set up one goal and scored an audacious penalty as the Seattle Sounders maintained their 100 percent start to the Major League Soccer season with a 4-2 victory at Chicago Fire on Saturday.

The Sounders made it three wins out of three after taking control of the game with two unanswered goals in the opening 15 minutes at Chicago's SeatGeek Stadium.

Spanish winger Victor Rodriguez fired Seattle into the lead after eight minutes, tucking away a low finish at the far post after good work down the right by Jordan Morris.

Lodeiro then created Seattle's second, splitting open Chicago's defence with a sublime pass to Morris.

The US international striker still had plenty to do, but adjusted his body position brilliantly to steer a finish beyond Chicago goalkeeper David Ousted to make it 2-0.

Seattle extended their lead early in the second half when Rodriguez was bundled over in the area on 49 minutes, allowing Lodeiro to step up and chip a Panenka penalty in off the underside of the bar.

Chicago hit back with goals from Raheem Edwards and Fabian Herbers but Raul Ruidiaz's late goal made the game safe for Seattle, who now lead the Western Conference standings with a maximum of nine points.

Minnesota, who have also taken maximum points from their opening two games, can draw level later Saturday with a win over the Los Angeles Galaxy.

Los Angeles FC, the only other team to make a perfect start to the season, face New York City FC on Sunday.