Phil Mickelson has revealed details of his head-to-head showdown with fellow American Tiger Woods, claiming he is willing to bet up to $50,000 on putts, Sports Illustrated report.

Mickelson, 48, was recently part of USA’s losing Ryder Cup team in Paris, with either him or Woods gaining a point for Jim Furyk’s side across the weekend.

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Since then, the pair have been preparing for their one-on-one winner takes all showdown, which is set to take place on November 23 at Shadow Creek Gold Course in Las Vegas.

The winner will donate their earnings to a charity of their choice, and Mickelson has recently revealed there will be extra challenges during the round.

Talking to the media in the week, Mickelson said:

When we’re mic’d on the course, we’re going to have little challenges, let’s say, that can maybe get in each other’s head.

You have a downhill putt. I’ll be you 50…50Gs that you miss this.

According to reports, there will be no tickets sold to the public, with the event between five-time Major champion Mickelson and 14-time Major champion Woods set to be available to watch through pay-per-view.