New York grabbed three points against a 10-man Union side with a second half comeback.
Joel Lindpere and Lionard Pajoy exchanged goals in the first half - with the former blasting home a left-footed shot in the 17th minute and the latter heading home a Freddy Adu cross - before Adu was sent off for picking up his second yellow just before halftime.
Even down a man the Union came out of the break firing and Pajoy had the club back on top inside the opening minute of the second frame when he poked home from an odd angle.
New York finally made the man advantage count and pulled back level in the 68th. Markus Holgersson got the goal with a towering header from a corner. The comeback was completed in the 78th. Kenny Cooper latched onto a lovely ball out of the back from Rafael Marquez and kept his cool, rounding the 'keeper before tapping home to give New York a 3-2 lead.
Michael Farfan really should have pulled the Union back into the match in the 86th when a free kick came across the face of goal and fell kindly at his feet, but his touch went directly back across the mouth of the goal and the Red Bulls hung on to claim all three points.
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