Sinner successfully challenges a call that his serve was out. Honestly, it was miles in – the ball was entirely in the box, not even clipping the inside of the line. Bad miss by the umpires.

Anyway, no damage done and he follows that reversal with an ace down the ‘t’. A thunderous forehand winner down the line moves him within a point of the game and an ace out wide does the business.

From 0-30 down on 4-5, Lulu Sun takes over against Donna Vekic and wins eight of the next 10 points to take the break in the first set!

Vekic has looked strong on serve but threw in a couple of errors there and Sun takes advantage. She will serve for the first set.

An epic, 25-shot rally – the longest of the match so far – to begin this fifth game ends with Medvedev finding a put-away smash that delights Princess Beatrice up in the Royal Box. Royal approval for the Russian.

Sinner closes the gap to 40-30 with a will-constructed point finished off with a powerful cross-court forehand volley but Medvedev outlasts him in another long rally to seal the hold

The world No 1 races to 40-0 and then an unreturned serve gets him over the line. Can he have a little dig at the Medvedev serve now?

We’re still on serve here early in the first set as Medvedev holds for the second time

Medvedev forces Sinner into an error for 30-30 before the Italians serve gets him out of trouble.

One apiece.

Vekic has so far been able to neutralise Sun’s aggressive play with attacking shots of her own, built behind a strong first-serve.

While Sun gets a look at her first break point of the match, Vekic attacked and took her chance to move forward behind her forehand.

On serve still.

Not the most convincing start from Medvedev on serve, going down 0-30 early on, but he squeezes through via deuce as Sinner goes wide with a final backhand return.

A key opening hold from the Russian.