Novak Djokovic looked comfortable as ever at the ATP Finals as he began his 14th campaign at the elite season-ending event.
Casper Ruud had a tough task in trying to overcome the world number one on his ATP Finals debut in Turin.
Prior to the battle, Djokovic had won 12 consecutive opening matches at the ATP Finals. He last lost his opening match on his own debut, against David Ferrer back in 2007.
While the Norwegian put up a good fight in the opening set, Djokovic was at his defensive best, including this exchange late in the first.
