Masters Cup over for Rafael Nadal

French Open champion, Rafael Nadal has injured his left foot and joins Andre Agassi, Andy Roddick, Lleyton Hewitt and Marat Safin on the sidelines in Shanghai.

The 19-year-old Spaniard's place was taken by Argentina's Mariano Puerta, this year's French Open runner-up. But Puerta, called up about an hour before his match started, lost 6-3 7-5 to Argentina's Gaston Gaudio.

Nadal, who missed the end of the season with knee tendonitis, hurt his ankle in winning the Madrid Masters final against Croatia's Ivan Ljubicic in October.

"I had a lot of inflammation in the foot and it's not improving," the Spaniard said.

"Last night I went to hospital for tests and at seven this morning more tests.

"The final decision is my decision but the doctor recommended I didn't play. It's my first Masters so I'm very disappointed."