Is It Wrist Injury Or Delhi Belly That Kept Nadal Out?

"Fans came in large number to see just one man-Rafael Nadal, play the first match of the day against India’s Ramkumar Ramanathan. However, an hour and a half before the first match, news streamed in that Nadal would miss the clash and fellow southpaw Feliciano Lopez would be stepping up in his place."