Novak Djokovic and Jannik Sinner will battle in a blockbuster semi-final at the Six Kings Slam in Riyadh. The Serb returns to Saudi Arabia a year after fighting against Carlos Alcaraz, hoping for another memorable duel against the world's best player.

The 24-time Grand Slam champion faces two much-younger rivals who are ahead of him - and the need to keep them both close

The passing of age is moving and it is felt and this year Novak Djokovic won only one title. For him it was a priority, we talk about the Olympic gold medal but also the Serbian had to deal with the rise of the new forward and in particular of Carlos Alcaraz and Jannik Sinner, tennis players who gave him big losses during these months.

Rafael Nadal will have one final battle with Novak Djokovic when they meet in the Six Kings Slam exhibition event on Saturday. The Spaniard is retiring after next month's Davis Cup finals in Malaga, bringing the curtain down on an incredible career.

The first day of the Six Kings Slam started with a highly anticipated match between World No. 1 Jannik Sinner and No. 5 Daniil Medvedev. Unfortunately for tennis fans, the exhibition was hardly competitive.