Gael Monfils became the oldest singles champion in ATP Tour history when the 39-year-old Frenchman swept to victory in the final of the Auckland Classic on Saturday.

For most of the late 2010s, men's tennis was an old man's game. The powerful trio of Serbia's Novak Djokovic, Switzerland's Roger Federer and Spain's Rafael Nadal held on long past the point even the most optimistic fans thought they would.

French veteran Gael Monfils has become the oldest player to win an ATP Tour title after beating Zizou Bergs 6-3, 6-4 in Auckland.