By Julie Glass
Finnish winger Lassi Lappalainen scored twice in his MLS debut and Orji Okwonkwo also had two goals AS the Montreal Impact beat the Eastern Conference-leading Union 4-0.
Evan Bush made three saves for his seventh shutout of the season, helping the Impact (10-11-3) snap a four-game skid.
The Impact were winless since June 26 and had only four goals during the losing streak.
The Union (11-7-6) lost for the second time in three matches and lead in the East by three points over Atlanta.