At the exit from No2 Court, security was radioing out for an extra player escort. Jamie Murray, safely through to the quarter-finals of the mixed doubles, was about to emerge and a mob was at the door, creating what had every appearance of developing into a code amber autograph-hunting situation.

Off Murray went, eventually, in a phalanx of four minders, through a scramble of back-pedalling amateur photographers and outsized tennis-ball wielders. Honestly, your brother has a big night on the Centre Court and, the next day, this happens - Murraymania the morning after, Andy Fever at one remove.

Jamie is now officially the only player in the mixed doubles draw whose hair is a topic of national conversation. He had been going - slightly against the fashionable grain, it must be said - for the John McEnroe look, straining his long locks (18 months in the growing, fact fans) through a red towelling headband. Now he's had an all-over No3 and looks like a US Marine, fresh out of a Chinook. If you didn't already know this, you weren't listening carefully enough.

Different doubles partner, too. He is no longer with Jelena Jankovic, with whom he advanced to the title last year, amid ungallant inquiries about whether they were, you know, an item.

Now he's with Liezel Huber, born in South Africa but a naturalised American and a former Wimbledon champion in the women's doubles. That's Mrs Huber to you, by the way. And, one assumes, to Jamie. There's less hugging, is all I'm saying.

Murray puts it this way. “Liezel and I like to have fun, too, but in a way she is a completely different kind of personality,” he said. “When we play, she is more intense and pumped up and it's much more businesslike.”

Actually, now he comes to mention it, all the pairings in the mixed doubles sound like businesses. Bryan and Srebotnik? They're an advertising agency, surely. Ullyet and Sugiyama? A Canadian capital investment bank. Lipsky and Dellacqua is a fashionable New York deli. Aspelin and Raymond make shirts.

And Damm and Peng is what you say when you're in Lipsky and Dellacqua and you accidentally spill coffee down your best Aspelin and Raymond button-down.

As for Murray and Huber - a manufacturing company, supplying parts to the British aviation industry, maybe. Yesterday they were pitched against those famous southwest London estate agents, Knowle and Chan. Julian Knowle is sleek and wiry and Chan Yungjan is broad and strong but they were easily dispatched, 6-3 6-3.

And then (for Jamie, anyway) the screaming, the shouting and the jostling. Funny business, fame.