You’d be forgiven for thinking that Novak Djokovic had done everything there is to do in tennis.

The Serb has won the Australian Open six times, Wimbledon on four occasions, the US Open twice, and added the French Open in 2016, amongst other titles and accolades along the way.

However, at the age of 31, Djokovic is looking to complete something no-one else has ever managed in the men’s game.

After coming back from a set down to beat France’s Adrian Mannarino in the Round of 32 of the Cincinnati Masters, Djokovic has moved one step closer to winning the tournament, and subsequently becoming the first man to complete the set of all nine Masters 1000 titles.

As Djokovic himself proclaims, this will not be an easy task.

“I have been trying to win the Cincinnati tournament for over a decade,” Djokovic stated.

Djokovic has come as close as you can get.

He has been beaten by Roger Federer on three occasions at the last stage, while losing to Britain’s Andy Murray twice.

“I have had five finals here and I couldn’t make it on the last hurdle. But I will keep on trying.”

The signs look good for Djokovic.

By beating Mannarino, he sets up a Round of 16 tie against Bulgarian Grigor Dimitrov.

Despite the Bulgarian being ranked fifth in the current ATP rankings, Djokovic has beaten him in seven of the eight matches they have played, with Dimitrov’s solitary victory coming way back in 2013.

With Federer still in the tournament, nothing is inevitable, but Djokovic will be confident in finally securing the Cincinnati title this year, even if he is playing it cool.

“I am still in the tournament and hopefully I can complete the Masters this year.”

If Djokovic can go all the way, he will have done what no man has ever done before and will further cement his name as one of the greatest tennis players of all time.