Since teaming up at Wimbledon, Jamie Murray and Martina Hingis have quickly established themselves as the nearest thing to an unbeatable partnership you are likely to see.

Doubles tennis is an unpredictable form of the game, especially with “no-ad” scoring (in which only one deuce can be played per game). Yet Murray and Hingis have now won both tournaments they have entered together, extending their 100 per cent record into a tenth successive match yesterday to land the US Open title.

Their latest victims – Michael Venus and Hao-Ching Chan – formed an unlikely geographical partnership between New Zealand and Chinese Taipei. The underdogs put up stubborn opposition, fighting back from a 6-1 beating in the opening set to take the contest to a tie-break after winning the second set 6-4.