Scheffler, who already has victories at the Masters and The Players Championship this season, carded a superb five-under 65 at Kiawah Island to move to nine under par and take a three-shot lead into the final round.
The American made five birdies in a bogey-free round on Saturday, including a crucial putt from 30 feet on the 18th hole to extend his advantage.
Scheffler will be looking to hold off a strong chasing pack on Sunday, with the likes of Brooks Koepka, Rory McIlroy, and Collin Morikawa all within striking distance.
The 25-year-old has shown impressive consistency in recent months and will be hoping to continue his fine form and secure another major championship.
The final round promises to be an exciting battle, with plenty of drama expected as Scheffler looks to add another major title to his impressive season so far. Hello! How can I assist you today?