Novak Djokovic has admitted that he was assisted by Kei Nishikori during his victory over the Japanese in the last four of the ATP World Tour Finals.
The defending champion came through 6-1 3-6 6-0 on Saturday to book his place in a third consecutive final in London.
Nishikori looked to be in the ascendancy when he took the second set, but some erratic serving allowed Djokovic to bagel him in the decider.
"Kei was playing great and this has been the best season of his life but he made some crucial double faults in the third set," the Serbian is quoted as saying by BBC Sport. "Of course I will watch the [other] semi-final. I'll get some popcorn and enjoy it from my bed."
Djokovic will face either Roger Federer or Stanislas Wawrinka in tomorrow's final.
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