Tie-breakpublished at 15:29 British Summer Time 6 June
Alcaraz 4-6 6-6 (3-0) Musetti*
Carlos Alcaraz lands an overhead to seize an immediate mini-break and he backs that up on serve, crushing a backhand for 3-0. Absolutely the start he needed.
Jannik Sinner to face Carlos Alcaraz in French Open final
World number one Sinner beat Novak Djokovic 6-4 7-5 7-6 (7-3)
Djokovic had been bidding for standalone record 25th Grand Slam title
Defending champion Alcaraz advanced after Lorenzo Musetti retired injured while trailing in fourth set
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Bobbie Jackson, Harry Poole and George Booth
Alcaraz 4-6 6-6 (3-0) Musetti*
Carlos Alcaraz lands an overhead to seize an immediate mini-break and he backs that up on serve, crushing a backhand for 3-0. Absolutely the start he needed.
Alcaraz 4-6 6-6 (0-0) Musetti*
Carlos Alcaraz misses the baseline and his first shot at levelling at one-set-all is shut down!
Incredible effort, this, from Lorenzo Musetti.
We're off to a tie-break.
*Alcaraz 4-6 6-5 Musetti
Ouch. Carlos Alcaraz is feeling the pressure. The Spaniard double-faults to fall 15-30 down.
Shottttt! Lorenzo Musetti pulls the trigger on a cross-court backhand and it whistles past Alcaraz.
Stunner. Two break back points!
*Alcaraz 4-6 6-5 Musetti
Can Lorenzo Musetti force another twist in this set, or is Carlos Alcaraz going to get himself back into this match?
The defending champion gets a forehand horribly wrong for 15-15.
*Alcaraz 4-6 6-5 Musetti
Greg Rusedski
Former British number one on BBC Radio 5 Sports Extra and BBC Sounds
Excellent movement from the Spaniard. That's the first time we have seen Lorenzo Musetti scream at his camp.
*Alcaraz 4-6 6-5 Musetti
There is our answer!
Lorenzo Musetti is first to blink at the business end of set two and now Carlos Alcaraz will have the chance to serve for the match.
How Alcaraz needed that. The crowd could sense it. But that sigh of relief could yet be short lived. He still has to close this out...
Alcaraz 4-6 5-5 Musetti*
What a time for Lorenzo Musetti to find that ace!
The Italian eighth seed recovers to 30-30 - but his momentum is halted there.
A backhand goes long and it's break point to Carlos Alcaraz.
Alcaraz 4-6 5-5 Musetti*
The crowd sense the importance of these upcoming games and a tense hush has fallen around Court Philippe Chatrier as the crowd wait to see who will blink first.
Lorenzo Musetti takes a moment at the back of the court ahead of a massive point at 0-30 down.
Alcaraz 4-6 5-5 Musetti*
'Forza!' is the message from Lorenzo Musetti's team as, just like he did in the first set, he seeks to pounce in the 10th game to clinch the second.
Carlos Alcaraz has to keep his cool, and the Spaniard quickly settles any nerves as he races into a 40-0 lead before holding to 15 thanks to a big first serve.
On we go!
*Alcaraz 4-6 4-5 Musetti
Greg Rusedski
Former British number one on BBC Radio 5 Sports Extra and BBC Sounds
Carlos Alcaraz is trying to take it so early and he hasn't been able to time it at the biggest moments.
It's about the big points in our sport. You can win less points, but if you win the important points you win the match.
It's almost like Musetti is lulling Alcaraz into his tempo. He's dictating the tempo of the match.
*Alcaraz 4-6 4-5 Musetti
That has the potential to be a match-defining hold.
Lorenzo Musetti finds a huge first serve and does not relent - despite an incredible show of defence from Carlos Alcaraz - and makes his way to the net to crash in a winner for a 5-4 lead.
And now the pressure is well and truly on Alcaraz's shoulders.
Alcaraz 4-6 4-4 Musetti*
Lorenzo Musetti is digging deep here! The Italian saves another break point as he continues to frustrate the defending champion on the big points in this contest.
Alcaraz 4-6 4-4 Musetti*
Wide! Carlos Alcaraz can't seize his first opportunity.
But he's going to get a second look...
Alcaraz 4-6 4-4 Musetti*
A defiant shake of the fist towards his team from Carlos Alcaraz as he walks purposefully to the back of the court after unleashing a forehand beyond Lorenzo Musetti.
The second seed crashes down an overhead. Break point! Huge moment.
Alcaraz 4-6 4-4 Musetti*
A grimace from Lorenzo Musetti as he over-hits a forehand. Deuce, and perhaps a chance for Carlos Alcaraz to force his way back into this match.
Alcaraz 4-6 4-4 Musetti*
Is there a more beautiful shot in tennis then an effortless single-handed backhand?
Few currently in the game can play it as well as Lorenzo Musetti, he guides his latest down the line to take charge at 30-0.
Carlos Alcaraz comes roaring back with a blistering forehand to get level.
Alcaraz 4-6 4-4 Musetti*
Greg Rusedski
Former British number one on BBC Radio 5 Sports Extra and BBC Sounds
That's a double 'vamos' from the Spaniard. He's not full of confidence, but he is trying to find a way to turn it on.
Alcaraz 4-6 4-4 Musetti*
This second set feels absolutely crucial to Carlos Alcaraz's hopes, with Lorenzo Musetti playing as well as he is.
Musetti follows Alcaraz to 30-30 and, for the first time, we see a real release of emotion from Alcaraz as he wins an important fifth point before getting over the line for four games apiece.
No room for error for either player from here.
*Alcaraz 4-6 3-4 Musetti
Greg Rusedski
Former British number one on BBC Radio 5 Sports Extra and BBC Sounds
Lorenzo Musetti is putting Carlos off balance.
Musetti has won every single point when he's come to the net.
He is looking so good at the moment.
*Alcaraz 4-6 3-4 Musetti
There is the sense both Carlos Alcaraz and the crowd are hoping for a bit more from the other to really get going here. Alcaraz has already established himself as a firm fan favourite at Roland Garros.
Lorenzo Musetti makes a first double fault to give the defending champion hope at 15-30, but the Italian holds again after impressing with a magic mid-point 'tweener' shot between his legs.