The chaps are warming up.

The first four points of the breaker are shared and then Cilic nets a backhand to cede the mini-break. He looks the tighter of the two, but then he is the tighter of the two ... and he gets on top of Del Potro's kick serve to immediately level things. They get to 5-5 and would you have a look! It's raining again, and off they go! It's raining pretty hard, and might they not come back tonight? Aaaaarrgfggh!

Del Potro holds to 15, and we're going to enjoy a breaker. I've no idea how it'll go -Cilic serves more aces, but Del Potro is generally better and has been doing better on Cilic's serve than Cilic has been doing on his

Del Potro gets to 15-30 and when Cilic pushes a forehand topspin - long - Delpzy has chances. Both go, but then he snatches another .... Cilic restores deuce with an ace. Next, a service winner down the middle ... but Delpo thinks it went long and it did ... so Cilic delivers a backhand down the line instead, then seals a big hold.

The rain has stopped and the covers are off! The players are coming back!

Ah. The covers are coming on, which means a long delay than expected.

Off they go, but they're not taking them back to the locker room, so we should be back soon enough.

Del Potro is 0-30 up, but the rain continues and Cilic wanders to the net. He sits down and the ref comes over - Del Potro looks more relaxed about things - and they stay under brollies. Presumably things are expected to clear pretty quickly.

Umbrellas are up but they're going to keep at it, and Cilic gets himself to 0-30 with a rare backhand down the line. Quickly, they're at deuce, and from there Del Potro closes out. This is really tight.

Del Potro gets to 15-30, but is tentative on a backhand so Cilic climbs into it when it drops short. Anyway, it's raining - just what we need - but not heavily, and in the meantime a backhand earns old Delpz the first break point of the game ... Cilic responds with an ace, his seventh so far. Another break point soon follows, and when that is wasted, Del Potro directs racket to ground and adds shouting, looking none the happier when a further ace saves a further break point. Soo enough, Del Potro will serve to stay in this set.

Lots of hitting the ball very hard, basically.

Del Potro races through his first service game even faster.

Straightforward hold for the number 3 seed.

Cilic prepares to serve...

If Del potro plays well here, he'll win - he's better than Cilic at almost everything, his forehand is the best shot in the game, and his footwork is special. But Cilic is a better player than he looks, so.