Rafael Nadal admitted his fitness level was well off the tour's top players after falling Thursday in straight sets to fellow Spaniard Carlos Alcaraz, who described the exhibition match as "a little bit sad".

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 admitted his fitness level was well off the tour's top players after falling Thursday in straight sets to fellow Spaniard Carlos Alcaraz. The 38-year-old Nadal, who announced last week he would retire from tennis after the Davis Cup Finals in Malaga next month,