The Red Bulls (16-9-9) reached the playoffs for the third straight year, and the ninth time in 10 seasons. New York won all three matches this season against the Union (10-18-6), who lost their final three games and will miss the postseason for the second time in three years.
Cooper added his team-leading 18th goal - and fifth against Philadelphia this season - in the 66th minute.
The Union played without defender Sheanon Williams (left ankle), defender Gabriel Farfan (right ankle) and midfielder Freddy Adu (coach's decision).
- Sports & Recreation
- New York Red Bulls
- Thierry Henry
- Kenny Cooper