The exhibition tournament at the Kingdom Arena in Riyadh (Saudi Arabia) offers the richest tennis prize money of the season

While the win at the inaugural exhibition event in Riyadh will not count towards the pair's official ATP Tour head-to-head record, Jannik Sinner maintained his fine recent form against Novak Djokovic

At the Laver Cup last month, Carlos Alcaraz complained that the tennis schedule is "going to kill us". But this week the Spaniard, who has only played two ATP events since the US Open, is playing the £11.5m Six Kings Slam in Saudi Arabia where Rafa Nadal and Novak Djokovic are also competing for the £4.6m first prize.

Six Kings Slam free live stream and how to watch as Rafael Nadal takes on Carlos Alcaraz in what will be the final meeting between the pair with the tennis legend set to retire later this year.

Rafael Nadal starts his pre-retirement farewell tour against Carlos Alcaraz on Thursday at the Six Kings Slam, and Novak Djokovic faces Jannik Sinner at the exhibition event that awards money but no ATP ranking points and is Saudi Arabia’s latest foray into tennis.

The kingdom is putting on the richest tennis exhibition in history, but its wider ambitions in the sport have contracted.

Rafa Nadal will have one last chance to face old rival Novak Djokovic before the Spaniard calls time on his illustrious career with the pair set to meet at the Six Kings Slam exhibition event in Saudi Arabia.

Rafael Nadal, in his first match since announcing he would be retiring after the Davis Cup next month, lost 6-3, 6-3 to Carlos Alcaraz at the Six Kings Slam on Thursday.