June 29, 2016
Mendiola took Emmanuel Boateng’s centering pass and beat Portland goalkeeper Wade Hamilton.
The Galaxy advance to face the Seattle Sounders in the Cup quarterfinals. The Sounders advanced by defeating Real Salt Lake.
Other matchups in the quarterfinals: New England Revolution vs. the Philadelphia Union; Chicago Fire vs. Fort Lauderdale Strikers; and Houston Dynamo vs. FC Dallas. All are from Major League Soccer, except for Fort Lauderdale, which is in the second-tier North American Soccer League.