Injured Rafael Nadal pulls out of Paris Masters, Djokovic to return to no. 1

Tennis star Rafael Nadal pulled out of the Paris Masters after he failing to recover from an injury. His withdrawal guarantees Novak Djokovic's return to world number one spot. 

Ahead of the start of the tournament, Nadal revealed that he has been recommended by the doctors not to play. 

"My abdominal muscles haven't felt good for the past few days, especially on serve, doctors recommended that I didn't play," said Nadal. 

Earlier, Nadal was forced to withdraw from his US Open semi-final against Juan Martin del Potro in early September with a knee injury.

The problem sidelined him for Spain's Davis Cup semi-final against France, and also from tournaments in Beijing and Shanghai.