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Daniil Medvedev is set to play his first match as the new world No 1 on Saturday. He takes on qualifier Tomas Machac in Indian Wells but has admitted he is feeling the pressure to perform after reaching the top of the rankings.

Medvedev ended the Big Four's 18-year reign at the top spot when he was crowned the new world No 1 in the rankings on February 28.

He became the first man outside of Novak Djokovic, Roger Federer, Rafael Nadal and Andy Murray to occupy the top spot since February 1 2004, when he would have been just seven years old.

Djokovic lost his world No 1 ranking after a record total of 361 weeks at the top when he lost to qualifier Jiri Vesely at the Dubai Championships.

It meant the 26-year-old took over after a succesful last 12 months which saw him win his maiden Grand Slam title at the US