TORONTO - Justin Mapp and Danny Mwanga scored two goals apiece as the Philadelphia Union routed Toronto FC 6-2 on Saturday.
Gabriel Farfan and Kyle Nakazawa also scored for the Union, whose six goals marked a franchise-worst for Toronto.
Maicon Santos scored both goals for Toronto (2-5-6), who pulled to within 3-2 with an early second-half flurry before letting the game get away to the frustration of the 20,122 fans at BMO Field who booed Toronto off the pitch.
"That was a bad, bad performance by us," said Toronto head coach Aron Winter.
Philadelphia (6-3-2), in only its second season in Major League Soccer, thoroughly dominated fifth-year Toronto in the first half, scoring its first in just the second minute of action. Prowling the right side of the box, Farfan gathered in a cross from the left sideline by Jordan Harvey and put his right-footed shot into the bottom left corner past 'keeper Stefan Frei.
Mapp made it 2-0 in the 11th minute on a left-footed shot from outside the box into the bottom right corner.
Not long after, fog started to settle in above BMO Field -- an apt description of the home team's state of mind. A prime example came when Joao Plata sent a pass just outside the Philadelphia penalty area that Santos missed entirely.
Toronto did show some life in the 35th minute when the elusive Plata set up Richard Eckersley who blasted his left-footed shot from just outside the area slightly high of the goal.
Hopes of a Toronto comeback suffered a setback just before the end of the first half on a splendid goal by Nakazawa, a right-footed shot from the centre of the box to the bottom left corner with assists by Mwanga and Sebastien Le Toux.
Santos injected some life into Toronto with a goal in the 50th minute, breaking in after taking a long pass from Eckersley. He worked around 'keeper Faryd Mondragon who had come well off his line and fired the ball into the middle of the empty net.
Santos scored again in the 60th minute from close in and in front of the goal to pull Toronto to within a goal. But Philadelphia dashed any hopes of a home-team victory two minutes later when Mapp scored his second goal of the game on a left-footed shot from outside the box into the upper left corner.
Philadelphia looking for its first road victory since March 19 at Houston, scored again in the 72nd minute when Mwanga converted a cross from Le Toux, then further embarrassed Toronto in the 89th minute with an easy goal by Mwanga.
