World number one Rafael Nadal has pulled out of next week's Swiss Indoors tournament in Basel, citing his tiring schedule in recent weeks for his decision.
"Hi all, sorry to announce that I won't travel to Basel in Switzerland but after very exhausting weeks I have to regroup my fitness and my body," he wrote on his Facebook page.
"I will do my best to come back to the Swiss Indoors next year."
The Spaniard has had a remarkable year, winning 10 titles including the French and US Opens to reclaim his spot as the number one player in the world.
However, the first signs that his demanding season may be starting to take its toll came in his recent tour of China where he was beaten in the final of the China Open by Novak Djokovic and then comprehensively defeated by Juan Martin del Potro in the semi-finals of the Shanghai Masters last week.
Nadal is expected to return to action at the Paris Masters at the end of the month ahead the season ending World Tour Finals in London in November.