The former world number one lost the first set despite leading 4-1 and 5-2, and was pegged back again having broken for a 3-2 lead in the second.
But Murray is renowned for being a fighter on court and so it proved again as the three-time grand slam winner defeated his Georgian opponent 6-7 (4-7) 7-6 (7-3) 6-3 in a match that finished after midnight in Sydney.
It marked further joy for Murray against world number 23 Basilashvili, an opponent he defeated in four sets in the first round of Wimbledon last year.
Sensational
The moment @andy_murray defeated World No. 23 in Sydney! pic.twitter.com/ZmHIJWJA2y
— Tennis TV (@TennisTV) January 12, 2022
Murray’s fellow Briton Dan Evans continued a perfect start to 2022 as he breezed past Pedro Martinez 6-2 6-3 in 85 minutes without facing a break point.
Top seed Aslan Karatsev defeated Miomir Kecmanovic 7-5 6-4 for his first win of the year, while Reilly Opelka (4), Lorenzo Sonego (5) and David Goffin (8) – who is Murray’s last-eight opponent – all coasted through in straight sets.
However, Fabio Fognini (7) was a seed who did fall, as he lost 7-6 (9-7) 7-6 (8-6) to American Brandon Nakashima.
At the Adelaide International 2 tournament, top seed Gael Monfils – who triumphed at last week’s Adelaide event – withdrew with neck pain in the deciding set of his second-round tie against Thiago Monteiro.
John Isner (2) also bit the dust against wildcard and home favourite Thanasi Kokkinakis with each set going to a tie-break.
Karen Khachanov (3) and Marin Cilic (4) safely made it through in straight sets against Gianluca Mager and Jaume Munar respectively, but Marton Fucsovics (8) was beaten 6-2 6-2 by Frenchman Corentin Moutet.
Tommy Paul, Arthur Rinderknech and Aleksandar Vukic all progressed.
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