Trailer: Strikeforce Challengers 1: Evangelista vs. Aina

Strikeforce Challengers: Evangelista vs. Aina was a mixed martial arts event held by the Strikeforce. The inaugural Strikeforce Challengers event took place on May 15, 2009, at the Save Mart Center in Fresno, California. It was broadcast live on Showtime in the United States.