Le Toux’s first goal of the season came after San Jose’s Jason Hernandez was whistled for a hand ball inside the goal crease.
Philadelphia played a man down for the final 49 minutes after defender Jordan Harvey was issued a red card and ejected for violent conduct against San Jose’s Chris Leitch.
Union goalkeeper Faryd Mondragon picked up his fourth shutout in helping Philadelphia improve to 4-1-1.
Red Bulls 1, Sporting K.C. 0 — Luke Rodgers scored his third goal in three games and New York won its third straight game to take the Eastern Conference lead in Harrison, N.J.
The Red Bulls improved to 4-1-2. Kansas City is winless in its last five games to drop to 1-4-1.
Rodgers scored in the 22d minute, streaking into the middle and blasting in a low, right-side cross from Dwayne De Rosario. Rafa Marquez started the play with a pinpoint pass to the creative De Rosario, who had his second assist since coming over from Toronto in an April 1 trade.
Rodgers, who started in place of 18-year-old Juan Agudelo in Hans Backe’s lineup because of his effectiveness working with French star Thierry Henry, had two goals two weeks ago against San Jose. Agudelo replaced Rodgers at the start of the second half.
Rodgers drew a yellow card 10 minutes later when he leaped over Jimmy Nielsen as he tried to knock in a short rebound, only to catch the goalkeeper’s mouth with his trailing right foot. That touched off a minor altercation, though no punches were exchanged.
Sporting had its best chance in the 60th minute when Graham Zusi sent a point-blank shot just above the crossbar.
Crew 2, Whitecaps 1 — Emilio Renteria scored twice in the second half in host Columbus’s victory over Vancouver.
Renteria converted a penalty kick in the 50th minute, then scored off a pass from Dejan Rusmir nine minutes later for his third goal of the season.
Omar Salgado, the 17-year-old star selected first overall in the 2011 MLS SuperDraft, scored his first MLS goal for Vancouver in the 69th minute.
Rapids 1, Fire 1 — Andre Akpan scored in the 49th minute for host Colorado and the Rapids tied Chicago to end a three-game losing streak.
Colorado (3-3-1) also ended a 319-minute scoreless streak dating to Omar Cummings’s goal in the 90th minute against D.C. United on April 3. Marco Pappa scored in the 43d minute for Chicago (1-3-3).
The Fire are winless in their last five games.
Sounders 3, Toronto FC 0 — Brad Evans scored twice in the second half and set up Alvaro Fernandez’s first-half goal in host Seattle’s victory.
Timbers 1, Real Salt Lake 0 — Kenny Cooper scored in the first half and Portland handed visiting Real Salt Lake its first loss of the season.
Cooper scored off a cross from Kalif Alhassan in the 22d minute.
