Clint Dempsey had very busy 33 minutes for Seattle Sounders.
The USMNT can earn a landmark home upset Tuesday in Houston.
Relive all of Sunday's MLS action!
Cobi Jones does his best 'Clint Dempsey face'
the US mens national team is advancing to the quarterfinals
Dempsey makes his mark in Copa America.
Jurgen Meter: What US fans think of 4-0 win
Clint Dempsey gives USA an early lead against Costa Rica.
Lionel Messi, Javier Hernandez, Luis Suarez and more are in town.
Full highlights between Puerto Rico and USA.