Murray places a lovely backhand winner onto the line but a poor miss trying to clip a forehand down the line sets Isner up at 15-30. Isner’s return drifts long as Murray finds the first serve, and then again as the American nets on the forehand out wide.

40-30, and another brilliant pass from Murray! The backhand from the baseline lands on the line and that’s another nice escape from a tricky spot.

Murray wheels away in frustration after being unable to do anything with the Isner serve out wide. Murray then manages to get his racket onto an Isner smash, but the American puts it away at the second attempt. Two Isner aces seal the hold.

Murray must remind himself that he is still in this. The chances will come, even if it’s hard to remember that when Isner serves up this many aces.

A beautiful drop shot from Murray, with side-spin, forces Isner to almost skip around the net. Isner’s blocked return drifts long as Isner then leaps into a backhand and, off-balance, shovels it into the net. An ace from Murray seals the hold to 15.

An opening ace from Isner that skips off the chalk, before Murray skelps a forehand into the net. Isner goes wide again, another ace. And then again out wide to the other side.

Murray cries out in frustration after a return from Isner catches the baseline, before he finds himself facing 0-30 after a double fault. Isner chucks a return long, before a good second serve from Murray catches the line and Isner is unable to keep it in play.

30-30, and an ace from Murray! And another, this time out wide! Solid recovery job there. Very important.

Isner holds to 15 with three aces. He blinked on a forehand smash that he put a few feet wide but apat from that it was pretty faultless.

Good start from Murray, as he places two backhand winners past Isner to get to 40-0. Murray challenges a Isner ball that he thought went long, but rather caught the baseline. Murray has a chance at the net but his drop shot does not clear and Isner is back in it at 40-30. A wild swing from Isner at a Murray second serve finds the net and Murray gets in front.

The first return from Murray is sliced wide, before Isner sends a wild forehand out for an unforced error.

Murray picks up Isner’s next serve and hangs a hopeful lob high that drops inside the baseline. Isner takes a moment before crashing it down for a winner.

An ace from Isner. Nothing Murray could do there.

Set point at 40-15, and Murray nets from the baseline.

Well, that was coming from the moment Isner broke early. Murray with work to do, but we did expect a long one here. This was never going to be straight sets.

Wheels from Murray to pick up Isner’s slice and send the backhand down the line. The forehand then fires a winner crosscourt to get to 30-0, followed by an ace up the middle. Murray then pulls out another one. Isner challenges it but it’s a mile out.

Isner cranks a backhand winner, but a strange return from the American off Murray’s second serve offers the hold.

Now, can Murray break to stay in the first set?