Carlos Alcaraz maybe didn't have any issues handling Rafael Nadal at the Six Kings Slam but afterward insisted that he had to play his absolute best to end on the winning side. On Thursday, the current world No. 2 ousted the 22-time Grand Slam champion 6-3 6-3 in Riyadh to reach the final at this week's star-studded exhibition in Riyadh.

Carlos Alcaraz likely just played his tennis idol Rafael Nadal for the last time in their professional careers during Thursday's semifinal match of the Six Kings Slam. Although the score makes it look like Alcaraz ran away with the match at 6-3, 6-3, the 21-year-old admitted he still had to play his best in order to beat the 22-time major champion.

The 38-year-old Nadal, who announced last week he would retire from tennis after the Davis Cup Finals in Malaga in November, lost 6-3, 6-3 to the 21-year-old Alcaraz in the semi-finals of the Six Kings Slam event in Saudi Arabia.