Tennis: Rafa Nadal to skip ATP Asian swing due to knee injury

September 19, 2018 8:39 PMMADRID (REUTERS) - World No. 1 Rafa Nadal said on Wednesday (Sept 19) he would skip the Asian leg of the ATP tour to recover from the knee injury he picked up at the US Open, a decision that will boost Novak Djokovic's chances of ending the year top of the rankings.