Oklahoma City advances to the Fourth Round, where they will face MLS side Colorado Rapids at Dicks Sporting Goods Park in Commerce City, Colorado on June 13.
Oklahoma City Energy
The Crew win their US Open Cup opener for the fourth straight year.
FC Dallas kicked off the 2016 tournament by defeating the Oklahoma City Energy for second straight year.
Arizona United SC has only been a USL PRO franchise for about two months. But it secured the most important win in club history to date on Wednesday night in the U.S. Open Cup third round, and earned the right to go after an even bigger victory in a few weeks.