Break point Boulterpublished at 17:31 British Summer Time 26 May
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
A third break point. Boulter times a backhand to perfection and hits it deep down the line.
Second day of French Open in Paris
World number one Jannik Sinner beats Arthur Rinderknech 6-4 6-3 7-5
Italian playing at first Grand Slam since serving three-month doping ban
Britain's Emma Raducanu, Jacob Fearnley and Katie Boulter all progress to second round but Jodie Burrage out
Carlos Alcaraz through but ninth seed Emma Navarro thrashed
Harry Poole, Emily Salley, Joe Rindl and Millie Sian
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
A third break point. Boulter times a backhand to perfection and hits it deep down the line.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
Unforced error. Saved again.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
Another long rally and Boulter's shots are getting bigger and bigger. Monnet can't handle her and slams one into the net.
Another break point.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
Annabel Croft
Former British number one on BBC Radio 5 Sports Extra and BBC Sounds
I think Katie Boulter just needs to do more of the same in this third set.
She stamped her authority on the match in that second set and got it back on track, whereas she became very tentative at the end of the first set and allowed her opponent into the match.
She cannot afford unforced errors now, and her game is always about being on the front foot and being aggressive, but she just needs to play with contained aggression.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
Ah, a real missed opportunity. Monnet hits a very slow second serve but Boulter returns it wide.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
Excellent return from Boulter who then finishes off a point with a forehand winner at the net.
The first chance in the decider.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
Shot! Katie Boulter hangs in a rally before producing a fantastic backhand, cross-court, passing winner to move to 30-30.
Monnet wins the next point with a strong serve but then double-faults for deuce.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
We're back playing again after Carole Monnet trudges back on to court. Monnet slices into the net to give Boulter the first point of the deciding set.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
Hello to everyone just joining us!
So, the story of the match so far...
Katie Boulter looked really good at the start of the opening set, and, at 5-4, had a chance to serve for the set. But the Briton was brutally broken and then picked off in a tie-break.
In the second set Boulter again secured an early break, but this time she pushed on, cruising to 6-1.
Now it's decider time.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
Annabel Croft
Former British number one on BBC Radio 5 Sports Extra and BBC Sounds
There are a lot more points that Katie Boulter is now starting to take charge of, isn't there?
It just seems like she is more on top of the baseline, she is more inside it, she is the one getting more impact through the court.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
Carole Monnet is taking a comfort break. Katie Boulter's still on court, loosening up, practicing her serves.
*Monnet 7-6 (7-4) 1-6 0-0 Boulter
Boom. Katie Boulter serves out wide and then backs it up with a winner down the line.
The Briton recovers with a dominant second set. We go to a decider...
Monnet 7-6 (7-4) 1-5 Boulter*
Unreturnable serve. 40-0.
Monnet 7-6 (7-4) 1-5 Boulter*
Boulter goes 30-0 up in no time at all.
Monnet 7-6 (7-4) 1-5 Boulter*
This time Katie Boulter gets it done, hitting a winner deep into the corner.
That's the insurance break. Boulter will serve to level the match.
*Monnet 7-6 (7-4) 1-4 Boulter
Now, hang on, a chance again. Katie Boulter gets another break point after a Monnet double fault.
*Monnet 7-6 (7-4) 1-4 Boulter
Yep, Carole Monnet is finding a bit of joy on her wrong side.
Two more deuces later and we're still at it in this game.
*Monnet 7-6 (7-4) 1-4 Boulter
Annabel Croft
Former British number one on BBC Radio 5 Sports Extra and BBC Sounds
That was a very deceptive backhand, I thought it was sailing long!
Carole Monnet's strikes quite often have the height that looks like it's going out but she just puts this extra little bit of spin on it. It's an unusual strike that she has, it's definitely not straightforward.
She is definitely not a ball-basher from the back of the court, she likes her shots to have shape and height.
*Monnet 7-6 (7-4) 1-4 Boulter
Nope. Monnet saves again. Deuce.
*Monnet 7-6 (7-4) 1-4 Boulter
Katie Boulter's barmy army are in good voice again as the Briton goes up 15-30.
Carole Monnet responds with a cracking forehand winner down the line to take us to 30-30. But then Monnet mishits a forehand into the stands to give Boulter a break point.
This for 5-1.