Nadal has tendinitis, cancels exhibition match

Madrid: Rafael Nadal has canceled an exhibition match against Novak Djokovic because of knee trouble.

He said doctors have told him to rest for 15 days because of tendinitis, so as to be ready for the London Olympics.

He and Djokovic were scheduled to play on July 14 for charity at Santiago Bernabeu, home of Real Madrid.

"I will now work on my rehab as well as taking some short holidays to resume my practice in 15 days," Nadal said in a statement.