Roger Federer tweeted his backing for a unified tennis tour last month, amid the coronavirus-enforced halt to major sporting action.

Rafael Nadal immediately backed the Swiss star and Murray, another supporter of the idea, is encouraged by the discussion, although he insists female players must also be heard.

"When you have a lot of the top male players now starting to discuss and talk about it, that's definitely very promising," the two-time Wimbledon winner said.

"When these discussions happen it's quite important not just to see this merger through a man's eyes and to bring more women into the decision-making positions so that everyone's voice gets heard."

Murray, who was previously coached by Amelie Mauresmo, has long been an advocate for the women's game, but explained challenges remain in changing the views of some.

"I spoke to some of the male players... who were unhappy because the prize money was equal," he said.

"I said, 'Well would you rather there was no increase at all?' And they said to me, 'Yeah, actually'.

"That's some of the mentalities that you're working with in these discussions."