Haiden Deegan will try and race the 2025 Monster Energy MXoN.

“We’re deeply grateful to R.J. for stepping in at such short notice to represent his country,” AMA Director of Racing Mike Pelletier said. “R.J.’s commitment and professionalism is outstanding, and I know he is honored and excited to represent the United States on home soil.”

Tomac will race in the MXGP class while Deegan will compete in the MX2 Class and Hampshire will seek victory in the Open Class. With Eli Tomac, and R. J. Hampshire in, Deegan will prepare to race and if not capable, Justin Cooper will step in.

“[I’m] really excited to get the chance to race for Team USA again! It’s an honor to race for this country and one I’ll never take for granted. Even if I wasn’t the first pick, I’ll always answer the call and give it everything I’ve got,” Hampshire said. “A lot went into making this happen last minute, and I can’t thank my sponsors and team enough for pulling it together. Ironman is one of my favorite tracks, and I’m fired up to battle in the front with this team!”

“I would like to offer a sincere appreciation to the versatile Justin Cooper for his unwavering dedication and professionalism,” Pelletier added. “Justin is continuing to train at the highest level in an effort to be ready at a moment’s notice and support his fellow countrymen. This speaks volumes about his character, work ethic, and commitment to the team. His effort behind the scenes does not go unnoticed and is a true unsung hero of the sport and Team USA.”