There was a pretty scurrilous interview in the Sunday Times last year that hinted pretty heavily at this. I did see this in the press some time afterwards that made me wonder too -
"RAFA Nadal landed Andy Murray in hot water with his girlfriend – by pretending to be her love rival.
The Scots tennis ace was bombarded with a string of suggestive texts from the “other woman” while out for a romantic meal with Kim Sears.
Panicking Andy, 24, was left making excuses all through dinner – until he realised he’d been spotted by the Spanish ace.
Andy said: “One of the messages said, ‘Hi Andy, you look great tonight, shame your girlfriend is here'.
"It had a couple of kisses at the end.
“I panicked. I didn’t know who it was from. It wasn’t until I was on my way home and I was walking back to the hotel that I realised it was Rafa Nadal.
“I am in the process of trying to think up a good prank to get him back.” "
But in the end who cares? Like John says being a great player is down to personality, skill and heart which Nadal has in spades. His sexuality is irrelevant.
Now gaylord tennis on the other hand ... http://www.robnewman.com/gaylord.html