The PGA Tour’s negotiations with Saudi Arabia’s Public Investment Fund just got a lot more interesting.

Endeavor, Fenway Sports Group, and Henry Kravis, the billionaire founder of private equity firm KKR & Co., are exploring investing in the PGA Tour, according to Bloomberg. Those potential investments could be alongside the PIF — or even offer a completely new opportunity altogether.

The PGA Tour confirmed that PIF negotiations have “resulted in unsolicited interest from other investors,” which could be a move to potentially quell concerns from politicians.