CHICAGO (AP) _ The Chicago Fire scored all of their goals in a 15-minute span in the second half to beat D.C. United 3-2 Saturday night.

Josh Wolff opened the scoring by getting the ball past United goalie Tom Presthus in the 67th minute, starting a spurt in which four goals were scored in nine minutes.

With back-to-back goals in the 70th and 74th minutes, the United took a 2-1 lead. But the Fire's Diego Gutierrez tied it just two minutes later off a pass from Peter Nowak.

Nowak scored in the 82nd minute off passes from Wolff and Jesse Marschm to win it.

Presthus had five saves, while Chicago goalkeeper Zach Thornton had two.