Quincy Amarikwa returned to Chicago's lineup and scored in the third minute, and goalkeeper Sean Johnson stopped a late penalty shot to lift the Fire to a 1-0 victory over the New England Revolution on Saturday night that snapped a six-match winless streak.
After New England forward Jerry Bengtson drew the whistle during a collision with Fire defender Gonzalo Segares, Johnson dived to his right to stop Tierney's blast and got a fortuitous bounce off the post before securing the ball.
The Revolution never came close to scoring again, dropping their fifth straight match.
Amarikwa missed Chicago's last league game July 6 against Kansas City after receiving a one-game suspension for yellow card accumulation. He made his presence known early Saturday, scoring his first league goal since May 10 to help the Fire (3-4-10) to their first victory at Gillette Stadium since June 27, 2010, a span of four matches.
New England (7-8-2) also was without one of its stars -- and lost another less than a third of the way through the match.
Midfielder Lee Nguyen, who leads the Revolution with five goals, sat out Saturday's game after an MLS Disciplinary Committee review stemming from a hard foul against Real Salt Lake on July 4. Nguyen was suspended and fined an undisclosed amount for stepping on the back of Salt Lake's John Stertzer after they got tangled up.
Midfielder Andy Dorman then injured his right knee during a collision with Fire defender Bakary Soumarein the 26th minute. After briefly returning to the field, Dorman exited the game for good in the 29th.
Amarikwa wasted no time marking his return to the lineup, netting his sixth goal of the season before the Revolution even settled into the match.
After Fire forward Mike Magee played a long ball into New England's end, Amarikwa outran Revolution defender Andrew Farrell, corralled the ball at the 18 and beat goalkeeper Bobby Shuttleworth from about 15 yards.
NOTES: Chicago hadn't picked up a point at Gillette Stadium since a draw on June 18, 2011. ... The Fire and Revolution tied 1-1 in their previous meeting this season on April 19. ... Revolution MF Daigo Kobayashi was awarded a yellow card in the 23rd minute for diving. ... Chicago's next game is at home against the Philadelphia Union on July 19. ... New England will play next on Wednesday in Los Angeles against the Galaxy.