WASHINGTON, May 8 (UPI) -- Jon Busch
recorded his fourth shutout of the season Thursday and pushed Chicago into first place in the Eastern Conference with a 2-0 win over D.C. United.
Justin Mapp and Cuauhtemoc Blanco scored for the Fire.
Chicago improved to 5-1-1, having allowed only three goals all year. United fell to 2-5-0 and is in last place in the East.
Mapp scored in the 38th minute off a header directed his way from Chris Rolfe. It was Mapp's first goal in two years.
Blanco beat United goalie Zach Wells with a shot from 25 yards in the 62nd minute.
Busch needed to make just two saves. His four shutouts lead MLS.
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