After Dylan Nealis picked up his second yellow card, Luquinhas put the match back on level terms in the 66th minute.
Story of the match
The first ten minutes saw end to end action as both sides tried to make the most with the crowded space. Omir Fernandez dispossessed Gazdag and seconds later, a Jose Martinez challenge stopped a Red Bulls attack.
A cross by Wagner just missed the head of Santos with the ensuing corner straight at Coronel.
Two minutes into the second half, the hosts went in front. Jose Martinez fired a volley at the backline that eventually found Santos, who laid it off to Gazdag and the Hungarian beat Coronel in the top right corner.
In the 55th minute, New York were reduced to ten men as Dylan Nealis was shown a second yellow for a late tackle on Santos.
Santos looked in on goal with a heavy touch allowing Coronel to race off his line and shut down the angle. The Brazilian then flicked a cross to Julian Carranza, who saw his blast denied by Sean Nealis.
The Red Bulls leveled as Luquinhas struck a one-time shot from the six-yard box that beat Blake.
Philadelphia thought they had grabbed a winner ten minutes from time. Coronel saved a Cory Burke header at the post, Carranza fired home, but he was judged to have been offsides.
The final chance of this entertaining encounter came when in stoppage time Jack McGlynn floated a perfectly weighted ball over the top to Burke, whose left-footed strike was denied by Coronel.
Man of the match: Luquinhas
He's taken the New York attack to a different level with his impeccable play on the wings. He hauled his side back when down a man and had a look at a second.