Just to be clear, Rose says that it was Spurs that recommened that he seek help, so I'd say Spurs knew all about it. It's covered in this piece by Delaney, who IMO is a far better writer than Burt in the Telegraph.
So, to be controversial here, whilst I applaud him being so candid and ordinarily would be posting clapping hands gifs as a response, I think it's very poor judgment to come out with this now 8 days our from the start of the competition. My reasons are simple, the oppo we use this to get at him during the game if he's playing. I would. There I said it, if I was the oppo and he was playing against me I'd research every word he's uttered, everything that could antagonise him and then I'd unleash everything I'd got during the game. Materazzi won his country the World Cup by getting Zidane sent off.
Being a footballer is hard regarding these issues, or is why we haven't had a gay footballer come out. I'm not saying it's right either, but this is professional sport, it's why athletes dope, why Cricketers cheat by scratching the ball, why there's sledging on the field.