Marco Di Vaio scored in the 84th minute as the Montreal Impact ended a seven-game losing streak with a 1-0 victory over the Chicago Fire on a wet pitch at Saputo Stadium on Saturday night.

The Impact (4-14-5) picked up its first win since it beat Houston on June 29.

They remained 10th and last in the MLS Eastern Conference behind the ninth-place Fire (4-6-13). But they got a shutout after allowing 15 goals during their losing run.

What had been mostly a defensive struggle finally broke open when substitute Maxim Tissot sent fullback Eric Miller in on the left side. The rookie's dogged battle with Razva Cocis saw the ball squirt out to Di Vaio, who calmly slotted in his fifth goal of the season from near the penalty spot.

Chicago, which ended a three-game league unbeaten run, was coming off a 6-0 defeat Wednesday to Seattle in U.S. Open Cup play.

New designated player Ignacio Piatti got a loud welcome from the announced crowd of 17,132 as he made his Impact debut. The Argentine midfielder had some promising moments, particularly when he combined with Di Vaio.