Frances Tiafoe vs. Matteo Arnaldi prediction: French Open odds, picks, best bets

Frances Tiafoe has the opportunity of a lifetime ahead of him. The American is into the Round of 16 at the French Open, and he won't face a seeded player until at least the semifinal. With Jannik Sinner, Carlos Alcaraz, and Novak Djokovic all out of the picture, a Grand Slam is within Tiafoe's grasp....