BARCELONA, Spain: Spain's world No 1 Rafael Nadal on Monday confirmed he will not compete in the Davis Cup final against Argentina this month due to a knee injury.

He made the announcement at a press conference in Barcelona after receiving the results of new tests on the tendinitis in his right knee.

"After a long and very positive season, it pains me to miss the two main objectives of the year, the Shanghai (Masters) and Davis (Cup) final," he said.