Mastroeni helps Rapids edge Crew
Pablo Mastroeni got the only goal as Colorado Rapids won 1-0 at home to Columbus Crew in the Major League Soccer Eastern Conference semi-final first leg.
Mastroeni scored after 24 minutes to give the Rapids the advantage ahead of the second leg on 6 November.
The remaining first leg matches will see two matches on Saturday as FC Dallas meet Real Salt Lake, while San Jose Earthquakes host New York Red Bulls. On Sunday Seattle Sounders face Los Angeles Galaxy.