Sinner edged a thrilling showdown, winning 6-7 6-3 6-3. His rivalry with Alcaraz is set to dominate the next decade, with the 23-year-old admitting that the Spaniard is the first person he thinks about every morning.

The future faces of tennis squared off on Saturday in Saudi Arabia. Jannik Sinner defeated Carlos Alcaraz in three sets in the finals of the Six Kings Slam: 6-7 (5), 6-3, 6-3.

Jannik Sinner defeated Carlos Alcaraz 6-7 (5), 6-3, 6-3 for the championship in the Six Kings Slam exhibition Saturday, after Novak Djokovic topped Rafael Nadal 6-2, 7-6 (5) in the third-place match at Riyadh,

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.

Jannik Sinner defeated Carlos Alcaraz in the Six Kings Slam final to win the eye-watering sum. The Italian came out on top in an epic three-setter in Saudi Arabia

Jannik Sinner and Carlos Alcaraz discussed their rivalry and relationship after their showdown in the final of the Six Kings Slam in Saudi Arabia. Sinner defeated Alcaraz 6-7(5), 6-3, 6-3 to win the exhibition tournament in Riyadh and earn a staggering $6 million — the highest prize money cheque in tennis history.