Australian supercross star Chad Reed will return to action in Las Vegas this weekend after eight months on the sidelines.

The 30-year-old TwoTwo Motorsports rider injured his left knee at a race in Texas in February, but has fought his way back to fitness to line up at the Monster Energy Cup on Sunday.

The overall victor will walk away with a winner’s cheque of $US100,000 ($A97,000), but any rider who wins all three 10-lap finals will bank a tidy bonus of $US1 million ($A967,000).

“It’s been a lot of work with rehab, but I’m excited to get back to racing and to have my fitness at 100%,” Reed told supercrossonline.com.

Defending champion Ryan Villopoto will be the man to beat in Las Vegas after cleansweeping all three races at the inaugural event last year to snare the million dollars.

Cessnock-product Reed, a former world and US Supercross champion, will fly out to Australia next week to contest the remaining three rounds of the national championship.

Reed’s first race on home soil since 2010 will be at Phillip Island in Victoria on October 27 and is to be held alongside the Australian Motorcycle Grand Prix for the first time.

The 30-year-old said he’d originally planned to make a trip home to be a spectator at the event, but the opportunity to race at such an “amazing circuit alongside MotoGP riders” was too good an opportunity to pass up.

Reed will then travel to Toowoomba and Newcastle for the final two races of the season.