'Old guy' Roger turns back calendar in gutting out quarterfinal triumph

When Roger Federer stood on the dusty baseline with the scoreboard showing he was trailing Marin Cilic 6-7, 4-6, 3-3, 0-40, it looked like the man with the dodgy back was about to disappear into a giant Wimbledon sinkhole.

When the self-styled "old guy" of tennis stood match point down at 4-5 30-40 in the fourth set, it looked like he would be sucked deeper into the mire.