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

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 A

The Six Kings Slam is an exhibition event for a half-dozen men 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.

Rafael Nadal of Spain greets spectators after the semifinal match against his compatriot Carlos Alcaraz at the Six K

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.

The quarter-final were held on Wednesday 16 October, with Sinner beating Medvedev to set up an encounter with Djokovic a day later, and Alcaraz likewise booking his spot in a semi-final against Nadal. After the semi-finals, competitors will then have a rest day, before a final and a third-place play-off on Saturday 19 October.

Novak Djokovic of Serbia returns the ball to Jannik Sinner of Italy during their semifinal match at the Six Kings Sl

Some of the world’s top male tennis players will be in action at the Six Kings Slam, a new exhibition event in Saudi Arabia. The sextet is headlined by Rafael Nadal, playing one of his final tournaments as he prepares to bow out of the sport after the Davis Cup finals on home soil at the end of November.

Stats, highlights, and quotes from Jannik Sinner's win over Novak Djokovic in the semifinals of Six Kings Slam.