Suspended Ken Abdoulie Mansally did not play when Real Salt Lake beat Chivas USA 1-0 over the weekend to record a home.
Sainey Nyassi’s New England Revolution were beaten 4-1 by New York Red Bulls.
Dax McCarty, Fabian Espindola, Thierry Henry and Jonny Steele were said to have scored for the hosts.
The Red Bulls, according to goal.com, were wearing black armbands to honour the victims of Monday’s Boston Marathon bombings.
Mamodou Futty Danso’s Portland Timbers will play San Jose Earthquakes away on Monday.
Midfielder Sanna Nyassi’s Montreal Impact will play Chicago Fire on Friday.
Impact are third on the Eastern Conference table. Twin brother Sainey Nyassi, who has yet to make an appearance in MLS so far this season for New England, is second from bottom.
Real Salt Lake are number three from the Western Conference.
Danso’s Portland Timbers are standing on fifth.