Nadal pull-out stuns French Open but show goes on

By Martyn Herman PARIS (Reuters) - Rafael Nadal went down fighting on his favourite battleground a year ago but this time his quest for an unprecedented 10th French Open title ended sitting glumly in front of a microphone. With third-round action in full swing out on the Roland Garros claycourts, Nadal dropped a bombshell midway though a sunny afternoon when he announced he was withdrawing because of an injury to his left wrist. Men's defending champion Stan Wawrinka eased into the last 16 by be