Federer cruised through his opening match of the team tournament, beating Japan’s Yuichi Sugita 6-4, 6-3 where he showed exactly how fit he is even after a month off.
Now the 36-year-old faces the 6ft 6in Khachanov for the second time in his career, having beaten him on the grass of Halle in 2017.
Federer secured a 6-4, 7-6 win on that occasion and will expect to take a similar win to give his Switzerland team the perfect start to their second match of the week.
Express Sport brings you all the action from the men’s singles, live from Perth in Western Australia.
Roger Federer vs Karen Khachanov LIVE
(*denotes next to serve)
Federer 2-1 Khachanov*
Yet another break point, on the Federer serve again, but he goes out wide again and is able to save rather comfortably.
He misses an on-the-run forehand at game point though and ends up in a bruising baseline battle with Khachanov, which he wins with a steered forehand, followed by a serve and volley to clinch the first service hold of the match.
*Federer 1-1 Khachanov
Federer is back level immediately. A fine volley from Federer forces two break points and Khachanov drives his own volley long to allow the Swiss to break back at once.
As you were.
Federer 0-1 Khachanov*
Expect a big game from the Russian and he is showing as much. He forces an early break point but Federer finds a forehand winer to save it. Another follows at advantage only for the Swiss to rely on his old faithful serve out wide.
But the third he can’t save and in less than five minutes, Khachanov breaks.
9.35am: Warm-ups are complete and Khachanov, having won the toss, has asked Federer to serve first…
9.15am: It was 34 degrees in Perth today, so the players will probably be thankful for the fact that this is a night match and the temperature is dropping.
That said, Khachanov is based in Dubai so probably has no problem with the heat, while Federer is basically invincible.
This is an exhibition tournament remember – there are no ranking points and we’ve had the occasional giggle – but with the Australian Open less than a fortnight away, it is a very useful warm-up for both players, who will be happy to treat it with due gravity.
They’ll be on court in a few minutes with a 9.35am start expected.