Some of the best players in ATP history have missed out on the world No 1 ranking - we rank nine of the greatest.

Novak Djokovic has been a top 10 player for more weeks than any other active ATP player, while there are seven current stars ...

Croatian striker Ana Maria Markovic, who is dubbed the "most beautiful footballer in the world", has announced her departure ...

Former world No. 1 and two-time Grand Slam champion Simona Halep announced her retirement at age 33 after losing in the first ...