Andy Murray prevailed against Kei Nishikori on Wednesday evening in the longest ATP World Tour Finals match in history. Clive Brunskill / Getty Images
Andy Murray prevailed against Kei Nishikori on Wednesday evening in the longest ATP World Tour Finals match in history. Clive Brunskill / Getty Images

Andy Murray v Novak Djokovic battle for world No 1 in ATP World Tour final ‘perfect way to finish the year’