Novak Djokovic celebrated his 37th birthday by breezing into the Geneva Open quarter-finals after his comfortable straight-sets victory against Yannick Hanfmann.

The world number one made light work of Hanfmann, who defeated Andy Murray the day before, after a 6-3 6-3 victory in Switzerland on Wednesday.

Serbia's Djokovic saved nine of the 10 break points faced and won six straight games in the second set for a routine victory, responding emphatically after going 3-0 down.

The winner of a last-16 meeting between Denis Shapovalov and Tallon Griekspoor awaits in the last eight for Djokovic, who triumphed with little trouble on his 37th birthday.

Data Debrief: Age will not stop Djokovic

Having watched rivals Roger Federer and Rafael Nadal struggle for fitness in the latter stages of their career, Djokovic is showing no signs of slowing down before the French Open starts later this month.

Djokovic will be aiming to become the second player in the Open Era to secure a Grand Slam Singles title after turning 37, along with Ken Rosewall at the Australian Open 1972.