Gael Monfils to win
The Bolivian clay-courter has a 3–10 record in the first round of Grand Slams so far in his career, and two of those wins, unsurprisingly, came at the French Open. His most recent success at this event was a notable victory over former runner-up Dominic Thiem in 2022.
Head-to-head: 0–0. Gael Monfils can be physically exploited by forcing him into a long battle at this stage of his career, but given Hugo Dellien's level in recent months, the Frenchman is likely to dominate and finish the contest before any potential physical issues come into play.