Good afternoon and welcome to LIVE updates of the fourth round clash between world number one, Novak Djokovic and rising Italian starlet, Lorenzo Musetti. The players are due on Court Philippe-Chatrier shortly.

GAME, SET AND MATCH! – DJOKOVIC 6-7 6-7 6-1 6-0 4-0 *RET* MUSETTI. Fatigue or injury? Probably a bit of both, but Musetti is barely a form of opposition now. He decides he can’t keep going and it’s all over. Djokovic hits back from two sets down to keep his hopes of a 19th Grand Slam title alive. The world number one prevails in three hours and 27 minutes following the 19-year-old’s retirement. For two sets Musetti thrilled and provided a look into the future of tennis with some magical play. He faded badly and needed a medical time-out in the three one-sided sets that followed, but overall he’ll be pleased with his run at his first French Open. Djokovic moves on and will play Matteo Berrettini in the last eight.

BREAK! – DJOKOVIC 6-7 6-7 6-1 6-0 3-0 MUSETTI. The mini surge has gone. Musetti slams a ball out of court in frustration and gets a warning after coughing up double break point once more. He hooks a weak backhand wide and the Nole express surges on.

DJOKOVIC 6-7 6-7 6-1 6-0 2-0 MUSETTI. It is slightly more of contest in the rallies now, but Djokovic has all of the answers. He backs up the break to 15 and has clocked up 11 games on the spin. He's in complete control and heading for the quarter finals.

BREAK! – DJOKOVIC 6-7 6-7 6-1 6-0 1-0 MUSETTI. That could be that. Musetti just can’t get enough length to trouble Djokovic now. The Serb seems to have lots of time and strolls to the net to clock up double break point. Musetti hits bigger to try and resuscitate the game but flashes a blistering forehand just wide.

DJOKOVIC 6-7 6-7 6-1 6-0 0-0* (0-15) MUSETTI. Lorenzo returns from a spell with the trainer and looks to be aggressive. Djoker slips after being wrong-footed but sticks an arm out to keep the ball alive and somehow goes on to win the point. The world number one needs treatment on a nasty graze near the knuckle. Play halted once again.

MEDICAL TIME-OUT: Musetti has gone off court for some treatment with the trainer.

SET! - DJOKOVIC 6-7 6-7 6-1 6-0 MUSETTI. It is indeed a bagel and it’s two sets all in what feels like the blink of an eye. We are heading into a decider but there’s no sense of jeopardy on it at present. Everyone watching is expecting Djoker to ease through it. Can Musetti find something deep within to change things up?

BREAK! – DJOKOVIC 6-7 6-7 6-1 5-0 MUSETTI. Lorenzo is so flat. He finally chalks up a point and looks on course for the game, but Novak refuses to let him get on the board. The Serb unleashes some venomous returns to turn 40-15 around and punish the heavy-footed, tiring Italian with a couple of dropshots to break again. The bagel is on.

DJOKOVIC 6-7 6-7 6-1 4-0 MUSETTI. Double break consolidated. Still no point for Musetti in this set. The dream is turning into a nightmare for Lorenzo.

BREAK! – DJOKOVIC 6-7 6-7 6-1 3-0 MUSETTI. This set has all-but gone too. What a bizarre drop off from the teenager. He’s broken to love again. He’s not won a point in this set. A decider looks like being a formality – and the winner of that will be too unless the world number 76 can get his act together. He’s not just lacking shot strategy right now, he’s devoid of fight.

DJOKOVIC 6-7 6-7 6-1 2-0 MUSETTI. It’s becoming a procession. Musetti needs to flip the switch soon or he’s going to get swept aside. It’s becoming embarrassingly simple for the Serb.

BREAK! – DJOKOVIC 6-7 6-7 6-1 1-0 MUSETTI. It’s not a case of Djokovic being brilliant here. He’s solid. Musetti is just a million miles off what he was producing in the first two sets. He miscues wildly down both flanks and coughs up a woeful break to love.

SET! - DJOKOVIC 6-7 6-7 6-1 MUSETTI. It’s as straight-forward as a set is going to get really. Djokovic claims a breadstick with Musetti offering little resistance. He reduces the arrears and into a fourth we go. The world number one’s comeback is ON!

BREAK! – DJOKOVIC 6-7 6-7 5-1 MUSETTI. That’s the double break and this set is all-but over for Musetti. For all of Djoker’s improvement there’s no doubt the teenager has dipped.

DJOKOVIC 6-7 6-7 4-1 MUSETTI. Djokovic has definitely got the misfiring forehand back in sync and it’s making a significant difference. He’s not tested again as another game whistles by. This third set is lacking the magic of the first two and it’s very one-sided too.

DJOKOVIC 6-7 6-7 3-1 MUSETTI. Lorenzo stops the rot with a couple of clinical overheads and some big first serves. He holds to love to get on the board and stay in touch.

DJOKOVIC 6-7 6-7 3-0 MUSETTI. Too good. Djokovic is finding a cleaner contact and more power on the forehand. His serve clicks nicely too with a super volley to ensure he consolidates to 15 with little fuss. It’s looking like a very different match all of a sudden, but a response was to be expected.