20:25 CET - There are eight men left in Monte Carlo, but Carlos Alcaraz is the only one of the top five seeds standing!
Tomorrow, the quarter-finals will get going from 11:00 CET, so be sure to tune back in then for updates throughout the whole day's play.
In the meantime, you can check out the full schedule here.
20:05 CET - Moving back to the BJK Cup qualifiers, Poland have taken an unassailable 2-0 lead over Switzerland thanks to singles wins from Magda Linette and Katarzyna Kawa.
Catch up on the BJK Cup singles results here.
19:58 CET - Grigor Dimitrov is the final man through to the quarter-finals in Monte Carlo, with the in-form Bulgarian recovering from a second-set wobble to defeat Alejandro Tabilo 6-3, 3-6, 6-2.
The 15th seed will face Alex de Minaur next in the last eight.
19:20 CET - Defending champion and sixth seed Stefanos Tsitsipas has progressed at the Monte-Carlo Masters, thanks to a convincing 6-1, 6-1 victory over Nuno Borges in just 68 minutes.
Meanwhile, the Czech Republic have beaten Brazil in their Billie Jean King Cup qualifier, with Marie Bouzkova and Linda Noskova coming out on top in their respective singles rubbers.
17:57 CET - Italy's Lorenzo Musetti is through to the quarter-finals in Monte Carlo after a fairly routine 6-3, 6-3 win over compatriot Matteo Berrettini.
17:42 CET - Alex de Minaur has secured a mightily impressive last-16 victory over Daniil Medvedev, with the Aussie cruising to a 6-2, 6-2 triumph to seal his place in the Monte Carlo last-eight.
Meanwhile, in the Billie Jean King Cup qualifiers, the Netherlands have seen off Germany thanks to impressive singles victories from Eva Vedder and Suzan Lamens over Jule Niemeier and Tatjana Maria respectively.
16:06 CET - Also through to the final eight in Monaco is Alexei Popyrin, who has stunned Norwegian fourth seed Casper Ruud 6-4, 3-6, 7-5 after being a break down late in the third set!
The Aussie will be up against Spain's Alejandro Davidovich Fokina in the quarters.
15:46 CET - Second seed Carlos Alcaraz has cruised past Daniel Altmaier in Monte Carlo and into the quarter-finals.
The Spaniard won the contest 6-3, 6-1 in under 90 minutes and will next face Frenchman Arthur Fils. He just loves clay!
14:10 CET - Fifth seed Jack Draper has been dumped out in Monte Carlo after a brilliant performance from Alejandro Davidovich Fokina earned the Spaniard a 6-3, 6-7(6), 6-4 victory in just under three hours.
12:18 CET - Arthur Fils is the first player through to the quarter-finals in Monte Carlo, with the mercurial Frenchman easing past Andrey Rublev 6-2, 6-3 in just 63 minutes.
Fils will meet either second seed Carlos Alcaraz or Daniel Altmaier in the last eight.
11:13 CET - Play is now underway in Monte Carlo, as Jack Draper faces Alejandro Davidovich Fokina and Andrey Rublev takes on Arthur Fils.
Follow both matches right here.
10:23 CET - There was Billie Jean King Cup action overnight, with Kazakhstan defeating Australia in their qualifier in Brisbane.
Yulia Putintseva eased past Maya Joint in straight sets, 6-2, 6-1, before Elena Rybakina helped Kazakhstan into an unassailable 2-0 lead after seeing off Kimberly Birrell 6-3, 7-6(4).
Read more on Kazakhstan's victory here.
10:06 CET - We've got a brilliant day of tennis to look forward to in Monte Carlo, with all 16 remaining players taking to the court as they look to seal their place in the quarter-finals.
Up first at 11:00 CET, fifth seed Jack Draper takes on Alejandro Davidovich Fokina and Andrey Rublev comes up against talented Frenchman Arthur Fils in an intriguing clash.
Later on, Carlos Alcaraz faces Daniel Altmaier, while Daniil Medvedev, Casper Ruud and Stefanos Tsitsipas also continue their campaigns.
Check out the full draw in Monte Carlo here.
09:50 CET - Good morning and welcome to our coverage of today's tennis!