Been watching the various clay court tournements over the last month or so and I'd say this is going to be a very open French Open.
You'd have to fancy Carlos Alcaraz, who has played some sublime tennis these last few weeks, but he got beat by a low ranked player in Rome this week.
Similarly, Djokovic was despatched by Holger Rune who is a skillful young player with a fiery temprement.
Tsitsipas is consistent but never seems to be able to win in the latter stages.
Jannick Sinner is unplayable when he is on form, but again, always seems to have an off match in the latter stages.