Mickelson defeated Woods and claimed £ 7 million in their head-to-head in 2018
Rivals Tiger Woods and Phil Mickelson will be joined by NFL greats Tom Brady and Peyton Manning while holding a $ 10 million (£ 8.2 million) in themselves take golf rematch on Sunday.
The event will raise money for the relief work of Covid-19 in the United States.
It follows Rory McIlroy's £ 4m skins event last week with Dustin Johnson, Rickie Fowler and Matthew Wolff also for charity.
Mickelson defeated Woods to claim the $ 9 million prize when they met in a matchplay duel in Las Vegas in 2018.
The pair previously had a strained relationship, but have split mocked in good spirits leading up to their resit.
During a recent video call, Mickelson showed his trophy from their most recent meeting in 2018, while Woods responded with his green coat to his 2019 Masters triumph.
NFL quarterbacks Brady, wh o partners Mickelson and Woods' teammate Manning also have a longstanding rivalry.
The competition takes place behind closed doors at the Medalist Golf Club in Hobe Sound, with no caddies, while players are allowed to drive their own golf buggies.