Novak Djokovic is learning fast. He has only been engaged for a matter of months and yet already he knows that keeping the missus happy is all that matters (his life would not be worth living if Her Indoors turned grumpy). The wedding plans are in full swing and while he is happy to take questions on the subject, Djoko knows better than to give too much away – the soon-to-be Mrs D prefers it that way…