Federer has won both his singles matches so far this week, first beating Yuichi Sugita of Japan before dispatching Russia’s Karen Khachanov, both in straight sets.
The victories came at little expense for Federer, who looked supreme throughout, an important aspect with his main Australian Open rivals almost all struggling with injury.
Across the net, Sock too has a problem. A fall against Sugita earlier in the week forced him to retire from their match during the second set, but the American claims to have overcome the hip problem he picked up two days ago and is fit enough to face Federer.
Express Sport brings you all the action live from Perth in Western Australia in the final round-robin round of Hopman Cup Group B.
Roger Federer vs Jack Sock LIVE
(* denotes next to serve)
Federer 2-1 Sock*
Another ace from Federer, out wide into the advantage court, sets up two game points and he follows it with another.
*Federer 1-1 Sock
Sock has his cap on backwards which I, an old-fashioned curmudgeon, cannot abide. But that’s what the youngsters do these days.
So much of what Sock does well is based around that loose, powerful forehand but Federer has one of those too – although he flies a couple long in Sock’s opening service game. The American holds to 15.
Federer 1-0 Sock*
The Swiss opens up with an ace and closes the game with a signature inside-out forehand, picking up a short ball extremely quickly. That love hold took just 67 seconds.
9.35am: The players are out, warm and ready. Federer to serve…
9.15am: This should be fun. Federer was in an exceedingly good mood on Tuesday during his win over Khachanov and has already lauded the informal nature of the Hopman Cup, which is technically an exhibition tournament.
Sock too is a man who likes to laugh on the court, even when the stakes are at their highest, and Federer was quick to warn that the jovial atmosphere could bring out the best in the young American.
They’ll both be out on court in a couple of minutes, smiles and all, to knock up ahead of their best-of-three-set clash.