Tiger Woods and Phil Mickelson are lining up a $10m winner takes all crunch match.
The original clash was meant to take place on 3 July in Las Vegas, but TV deals could not be struck in time.
"We're working on a different date," Mickelson said. "I thought it was done for the 3rd but obviously it wasn't."
Mickelson and Woods - long-term adversaries - came up with the idea when playing a practice round at the Masters in April.
The pair appeared to be getting on well at Augusta, but you can be sure it will be a feisty duel when at the showdown.