The Monte Carlo Masters is the first of three ATP 1000 events in the build-up to the French Open.
Rafael Nadal has reigned supreme in the French principality, winning an incredible 11 times.
Last year, the Spaniard comfortably beat Kei Nishikori 6-3 6-2 in the final.
And this year he will arrive as the second seed behind world No 1 Novak Djokovic.
The top seed has won in Monte Carlo twice and will be aiming for an improvement in form after two shock defeats in Indian Wells and Miami.
Elsewhere, Alexander Zverev and Dominic Thiem are likely to provide the biggest challenge for Djokovic and Nadal.
While the likes of Stefanos Tsitsipas, Karen Khachanov, Borna Coric and Daniil Medvedev are all capable of causing an upset.
Great Britain’s Kyle Edmund will be hopeful of a good showing after an early exit at the Grand Prix Hassan II in Marrakech.
When will the Monte Carlo draw take place?
The draw for the tournament will be revealed on April 12, Friday at 5.30pm (GMT).
The top eight seeds have byes into the second round.
Who are the top eight seeds?
1. Novak Djokovic (SRB)
2. Rafael Nadal (ESP)
3. Alexander Zverev (GER)
4. Dominic Thiem (AUT)
5. Kei Nishikori (JAP)
6. Stefanos Tsitsipas (GRE)
7. Marin Cilic (CRO)
8. Karen Khachanov (RUS)
Will Roger Federer play in Monte Carlo?
Roger Federer has not entered the field for Monte Carlo.
The Swiss star will make his first appearance on clay at the Madrid Open next month.
How to watch Monte Carlo Masters on TV?
Coverage of Monte Carlo is being broadcast on Amazon Prime Video.
This year, Prime Video will broadcast on-site, live studio coverage across tournaments, including at the BNP Paribas Open from Indian Wells, the Fever Tree Championships from The Queens Club, the US Open, and the Nitto ATP Finals from The O2.
On-site field reporters will bring customers the latest action, analysis and commentary right from the court side at many tournaments.
In addition to 37 ATP Tour events and the US Open available exclusively on Prime Video with a Prime membership, Prime members in the UK who subscribe to Eurosport Player through Prime Video Channels for an additional £6.99 per month (following a 7-day free trial) will also benefit from full coverage of the French Open, and daily highlights and live coverage from the men’s and women’s finals of Wimbledon in 2019.