PGA Tour chief Jay Monahan said Tuesday talks with the Saudi Arabian backers of LIV Golf were "accelerating" but was tight-lipped on how the proposed joint venture between the two bodies would work.

Speaking to reporters ahead of this week's Players Championship, Monahan said negotiations with Saudi Arabia's Public Investment Fund (PIF) were progressing.

However Monahan said several "key issues" remained to be resolved and that hammering out a deal would "take time".

"As I've said on a number of occasions, you can't negotiate a deal like this in public, so I will be brief," Monahan said.

"I recently met with the governor of the PIF, Yasir Al-Rumayyan, and our negotiations are accelerating as we spend time together.

"While we have several key issues that we still need to work through, we have a shared vision to quiet the noise and unlock golf's worldwide potential."

The emergence of the Saudi-funded LIV Golf, which has lured top PGA Tour players with huge signing on fees and lucrative limited field tournaments, plunged golf into a bitter civil war.

Monahan however shocked the sporting world last June by announcing that the PGA Tour had agreed a tie-up with LIV's backers, the PIF, in a stunning U-turn that followed secret negotiations.

The precise detail of how the new venture between the PGA Tour and PIF will work remains shrouded in mystery. An initial December 2023 deadline to agree a deal came and went as negotiations continue.

Since then more players have left the PGA Tour to join LIV, most notably Spanish star Jon Rahm, the reigning Masters champion who opted to join the upstart circuit in December.

'Real progress' made 

Monahan, who has faced criticism for his handling of the crisis, declined to comment on the question of whether players who left for LIV would be welcomed back to the PGA Tour.