Novak Djokovic has lost his world number one ranking after suffering a shock defeat to world number 123, Czech Jiri Vesely, in his quarter-final in Dubai on Thursday.
Playing in his first tournament since being deported from Australia, Djokovic needed to get as far as the semi-finals to retain his top ranking, but went down 6-4, 7-6 (7/4) to Vesely, who interestingly also beat the Serbian in their last meeting in 2016, Fox Sports reported.