Final answer:
The question does not specify a player, making it impossible to answer which highest round was reached at the French Open. The French Open is a major tennis tournament with varying results for different players. The name of the player is needed for an accurate response.
Step-by-step explanation:
To answer the question about the highest round reached by a player at the French Open, we need more context as the question does not specify which player it is referring to. The French Open is one of the four Grand Slam tennis tournaments, and it has been played by many tennis players over the years, each achieving different levels of success. If we had the name of a specific player, we could then determine whether their best result was reaching the Quarterfinals, Semifinals, Finals, or if they indeed never played in the French Open. Please provide the name of the player in question so we can give an accurate answer.