D.C. United rallied from a goal behind to beat Atlanta United 2-1, while expansion Minnesota United held on to beat the Portland Timbers.
Jack McBean scored a pair of sublime goals en route to LA's 3-1 away victory over Western Conference foes Colorado.
Major League Soccer: Romain Alessandrini (70') Colorado Rapids 1-3 LA Galaxy
Major League Soccer: Jack McBean (63') Colorado Rapids 1-2 LA Galaxy
Five goals, two own-goals, and two red cards defined Minnesota's narrow win over the Portland Timbers in Minnesota.
Major League Soccer: Dillon Serna (37') Colorado Rapids 1-1 LA Galaxy