James Magnussen knows he's a puppet in a trillion-dollar play.
And he's fine with that, given he could earn more money swimming for less than two minutes in Las Vegas than he did in eight years as a clean athlete.
Magnussen, on performance enhancing drugs, will race at the inaugural Enhanced Games in the so-called Sin City on Sunday night (Monday AEST).
The financial lure is substantial for the Australian, a two-time Olympian and dual 100m freestyle world champion who retired from swimming in 2018, until the arrival of Enhanced Games.
Magnussen will swim the 50m freestyle and 100m freestyle in Vegas with $US250,000 ($A358,000) prizemoney for race winners; and a $US1 million ($A1.4 million) bonus for breaking the 100m freestyle world record.