|French Open fourth round|
|Venue: Roland Garros, Paris Dates: 24 May - 7 June|
|Coverage: Live text and BBC Radio 5 live sports extra online commentary from around 12:00 BST.|
Andy Murray has challenged himself to raise his level when he plays Frenchman Jeremy Chardy for a place in the French Open quarter-finals on Monday.
The Briton, seeded third, faces the world number 45 in the second match on Court Suzanne Lenglen at around 12:00 BST.
The pair have met seven times, with Murray winning six of those matches, including on clay in Rome on 13 May.
Murray, 28, said: "There's a lot of things I can do better."
The Scot goes into the match unbeaten in 13 matches on the surface this year.
"He's so confident, he didn't lose a match on clay," said Chardy.
"I played against him in Rome. I played a good match, but still I lost 6-4 6-3. After he beat me, he pulled out from Rome to be fresh for Roland Garros, and I think for him it's a big goal.
"So it will be a really tough match. In the past we always said 'Andy doesn't like to play on clay', but now I think everybody changed and he likes more now to play on clay."
The 28-year-old Frenchman said he had been annoyed by Murray's decision to withdraw from the Italian Open the day after their match.
"He's so confident and he wants to be one of the best players," said Chardy. "If you want to win a Grand Slam, everybody is tired. But it's his choice, and for the moment he's doing well.
"If he wins Roland Garros, everybody will say it was a good choice. If he loses, it will be wrong."
Murray has reached the last 16 having dropped one set and despatched 29th seed Nick Kyrgios for the loss of just nine games, but he says further improvement is required.
"Hopefully next week I'll start to play some better tennis from the beginning of matches," Murray said.
"I'm going to need to because the opponents get tougher."
|Andy Murray's potential route to the final|
|Quarter-final: David Ferrer (Spain, seeding 7) / Marin Cilic (Croatia, seeding 9)|
|Semi-final: Novak Djokovic (Serbia, seeding 1) / Rafael Nadal (Spain, seeding 6)|
|Final: Roger Federer (Switzerland, seeding 2)|
The winner of Monday's match will play Spanish seventh seed David Ferrer or ninth seed Marin Cilic, of Croatia, in the quarter-finals.
Murray also took time out on Twitter to respond to a complaint about his language during the win over Kyrgios, saying: "Very sorry. I try to be a good role model but this is one of my many failings. I'm far from perfect but I try hard to improve my behaviour."