Rafa Nadal of Spain hits a return to Novak Djokovic of Serbia during the men's singles final match at the China Open Tennis Tournament in Beijing, China, October 11, 2015. REUTERS/Jason Lee Picture Supplied by Action Images
(Reuters) - World number one Rafa Nadal has withdrawn from the upcoming Basel indoors tournament due to a knee issue, the Spaniard has said.
With the ATP Finals coming up next month, Nadal said on his Facebook page he had made the decision to pull out of next week's Basel tournament after getting medical advice.
