MONTREAL -- Marco Di Vaio scored in the 14th minute as the undefeated Montreal Impact made it four straight to start the MLS season with a 1-0 victory over the New York Red Bulls on Saturday.

New York (0-2-2) finished the match short a man as defender Brandon Barklage was sent off for taking Patrice Bernier down at the edge of the penalty area in the 74th minute.

The Red Bulls may have had a slight edge in ball possession, but the Impact (4-0-0) dominated the scoring chances and wasted a handful of opportunities to pad the lead.

A crowd of 26,259 saw Di Vaio whiff on a perfect set-up from Andres Romero, have a shot from the left side blocked by Luis Robles and tip another ball just wide in the second half alone.

The Impact scored first for a fourth straight game in the 14th as goalkeeper Troy Perkins sent a long ball up the middle that was headed down to Bernier.

The canny playmaker slipped a pass through the New York defence to Di Vaio, who went left side on Robles for his second of the season.

The Red Bulls new signing from Paris St-Germain, Peguy Luyindula, played his first game at forward and had his side's best chance of the first half. A Heath Pearce attempt off Juninho's free kick was deflected by Perkins to the top of the box, where Luyindula chipped it over the bar in the 38th minute.

And he was in front again in the second but only got a touch on a feed from the right side and was stopped by Perkins.

Impact coach Marco Schallibaum, without injured Alessandro Nesta (groin), played Matteo Ferrari as the lone central defender and had Hassoun Camera play on the right wing, dashing back to the defence when needed.

Camara made a pretty play to Di Vaio 36 minutes in, but Robles came out to shut off the attempt.

Karl Ouimette, the first graduate of the Impact's academy last season, got a surprise first start at right back for Montreal and acquitted himself well playing all 90 minutes.

The Impact played their first two home games in the Big O dome and will move outdoors to Saputo Stadium for an April 16 match with Columbus.

Notes: More surprising than Ouimette starting was that fullback Zarek Valenin, one of their top picks as an expansion club last season, was a healthy scratch. ... Thierry Henry (knee) wasn't available for New York. ... Montreal's Sanna Nyassi was away for the World Cup qualifier for Gambia, while The Red Bull's Tim Cahill was away with Australia.