Rafael Nadal and Novak Djokovic receive assistance as…..

The Six Kings Slam gets underway on Wednesday, October 16 as Medvedev takes on Jannik Sinner in the quarter-finals for the chance to play Djokovic the following day.

Meanwhile, Wimbledon champion Alcaraz will go head-to-head with Rune on the opening day, with the winner of that encounter facing Nadal on the Thursday.

There is a third-place play-off on Saturday, with the final also taking place on the same day.

The Six Kings Slam was launched earlier this year, with players being handed £1.12million just for showing up. And the winner is set to land a whopping £4.5million, nearly twice as much as Sinner received when he won the US Open earlier this month.

Djokovic played in Saudi Arabia at the end of last year when he featured in the Riyadh Season Tennis Cup exhibition event. And discussing the Six Kings Slam in the spring, the Serbian said: “I am excited to return to Riyadh and play in front of all my Saudi fans.”

Nadal, meanwhile, was named as an ambassador for the Saudi Tennis Federation at the start of the year. And he exclaimed in February: “After some other tennis players have done so, I am very excited to play for the first time in Riyadh.”