The winger, who has also played for Dutch side Heerenveen and MLS outfit Columbus Crew, came off the bench in the 77th minute of a 4-0 victory over Seattle Sounders.
"No pressure at all, I got to totally enjoy myself and take it all in," the Californian said after the match, watched by a 25,000 strong crowd in Carson.
"Earlier today I was really nervous. Okay, this is a soccer game. I've done this a million times.Read More »from Robbie Rogers makes history with LA Galaxy debut