Three break points pass for American Boserup as Kvitova manages to hold.

A fist pump, a stare towards her support team and a shout on "come on" from the Czech.

She may already think she has won her biggest fight to get here but she is battling hard out there.

Image source, Gett

A big 'lefty' serve and a devastating forehand have been the hallmarks of the early part of Petra Kvitova's career.

Her winner tally is into double figures already here. There is another! A quite brilliant forehand on the run gets through the defence of Boserup.

Danger here though as a return winner from Boserup sets up break point.

Simon Briggs
Daily Telegraph tennis correspondent on BBC Radio 5 live sports extra

Kvitova's attitude has been wonderfully upbeat and defiant. She's shown no sense of self-pity despite this devastating attack which came completely out of the blue.

It would have been easy to take yourself away from the world but she said from the start 'I'll be back' and she's shown a wonderful attitude.

She wouldn't accept that she would have to walk away from the sport that she loves.

The first break point is saved by Boserup as a backhand sails wide off the racquet of Kvitova.

A deep second serve from the American does enough to take us to deuce.

Kvitova misses another chance to break serve but Boserup looks to have settle a little and wins the next two points to get her first game on the board.

Kvitova has not played a match since a defeat to Caroline Garcia in the Fed Cup back in November but she is hitting winners off both wings.

Here come two more break points for the two-time Grand Slam champion...

Image source, Getty Images

Simon Briggs
Daily Telegraph tennis correspondent on BBC Radio 5 live sports extra

It's a world-class player against a journeywoman but obviously circumstances make this match very different.

Kvitova is a double Wimbledon champion but she could have won more with her game.

The cleanness with which she strikes the ball has always been extraordinary and she uses her left-handedness very well, especially on the serve to take players out of the court.

Kvitova's Mum, Dad and two brothers are all court side to see her return.

Bang, bang, bang. Two aces plus a forehand winner and the Czech left-hander has another game on the board.

I doubt she thought the first eight minutes of her comeback would go that well.

Kvitova certainly seems to be striking the ball well early on.

She is putting Boserup - who is playing at Roland Garros for the first time - under pressure right from the start.

The American is unsurprisingly a little nervy and a double fault sets up break point.

Another crunching forehand from Kvitova gives her the break of serve.

Image source, Reuters

If that doesn't settle Kvitova down nothing will. A huge forehand winner to take the opening point.

A double fault follows but with two more winners the world number 16 takes the opening game.

The perfect start.

Here we go. What a moment for Petra Kvitova.

After seven months out following a knife attack in her home, she is back on court in a Grand Slam.

Image source, Getty Images

Piers Newbery
BBC Sport in Paris

"It's nice to see you all again. I missed you guys. That's funny, but I did."

You know a player is desperate to get back in the action when they're happy to see the assembled media in front of them at a press conference. Petra Kvitova has never been the confrontational type, widely hailed as the nicest player on tour, and her return after a horrific knife attack in December is already one of the stories of the tournament.

Being scheduled first up on the main Chatrier court usually guarantees a mere sprinkling of spectators - they don't exactly rush to their seats here - but Kvitova is likely to have the support of a French player for as long as she stays in the tournament.

Petra Kvitova and her American opponent Julia Boserup are out to warm-up on Court Philippe Chatrier.

The stands are by no means full but the Czech player has a broad smile as her name is called and she walks out to a ripple of applause.

Image source, Getty Images

It has been a difficult few months for Petra Kvitova to say the least.

The 27-year-old suffered a career-threatening hand injury in December after being stabbed by an intruder in her home.

By returning to action, Kvitova said she had already won her on her arrival at Roland Garros but admits she is not back to full health.

"I know that my hand is still not 100% ready, so we will see how everything goes, but I'm happy that I'm able to play again.

"Of course the hand doesn't have that power and the strength yet, but I'm working on it. Hopefully one day everything will be perfect. But we never know still."

BBC Radio 5 live sports extra

BBC Radio 5 live sports extra are on air live from Roland Garros.

BBC tennis correspondent Russell Fuller and Simon Briggs of the Daily Telegraph are in the commentary box.

You can listen at the top of this page.

Piers Newbery
BBC Sport in Paris

Security is not surprisingly tight - three bag checks and two scans on the 10-minute walk from the Porte d'Auteuil metro stop, but once inside the atmosphere is as sultry and snoozy as the rest of Paris on a Sunday morning. This is the smallest of the four Grand Slams in terms of the size of the grounds, and can be hellish for spectators when it rains, but on a sunny day it's hard to match.

The first match this morning is sure to be an emotional one.

Two-time Wimbledon champion Petra Kvitova plays her first match following a knife attack in December. She plays American world number 86 Julia Boserup, starting in the next few minutes.

That match is followed by world number one Angelique Kerber's tricky first round match against Russia's Ekaterina Makarova.

Dan Evans is the only Briton in action on the opening day, he plays veteran Tommy Robredo later on this afternoon.

Here is a full order of play.

Image source, Rex Features

Good morning. Yep it is that time of year already.

Summer is fast approaching and that means the tennis world heads to Paris for the second Grand Slam of the year.

How will Britain's Andy Murray and Johanna Konta fare? Can Nadal complete La Decima? Will Novak and Andre make a dream team? Who will come through a women's draw without Serena and Maria?

There are so many questions to be answered. Here's a look at what is coming up today.

Image source, Getty Images

The 2017 season started in the most dramatic fashion.

Now we head to France without the year's two Grand Slam champions as attention turns to the red clay of Roland Garros.

Who will be crowned as 2017's King and Queen of clay? Over the next two weeks we'll find out...

Image source, Rex Features