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Rafael Nadal has admitted he will have to be at his very best against Alexander Zverev if he is to stand a chance of progressing to the French Open final. The Spaniard produced a fine performance to defeat Novak Djokovic in four sets in a pulsating quarter-final match which concluded in the early hours of Wednesday morning, but is fearful his campaign could come to an end if he is to be slightly off against the German.

He will take on the world number three tomorrow, who defeated the red-hot Carlos Alcaraz to mark his first victory over a top-10 player at a Grand Slam. The German is playing well on the clay and after progressing to the Madrid Open final earlier this month, he has now reached his second consecutive French Open semi.

The 25-year-old possesses some heavy artillery, especially his serve and following today's practice session, Nadal stated how well he