It was a painful day in the office for Gael Monfils at the ATP 250 Sao Paulo on Friday, quite literally.

The Frenchman, seeded fourth, stumbled to a 3-6 6-3 3-6 defeat at the hands of Argentina’s Horacio Zeballos in the second-round encounter.

That was not the only misery.

While serving at 1-4 in the first set, Monfils rushed on to the net in an attempt to return a cross-court forehand from Zeballos.

It was then that he lost his balance and suffered a nasty fall, promoting medics to rush in and check a writhing Monfils.

Fortunately, he recovered enough to continue the match, although he went on to lose in a grueling battle that lasted two hours and four minutes.

As for Zeballos, he moves on to the quarter-finals to meet Brazilian Rogerio Duta Silva.

Monfils….(????@TennisTV ) pic.twitter.com/ZjA0wBTAbk

— doublefault28 (@doublefault28) March 1, 2018