Australian Open champion Stanislas Wawrinka has pulled out of the ATP event in Rotterdam next week with a leg injury, he announced on Tuesday.
Switzerland's Stanislas Wawrinka poses with the trophy after his victory against Spain's Rafael Nadal at the Australian Open final in Melbourne, on January 26, 2014
"Unfortunately I'm not in the form to compete in Rotterdam," said the Swiss star who helped his country qualify for the Davis Cup quarter-finals with success over Serbia in last weekend's first round tie.
"I hope to be back on court very quickly," added the 28-year-old, who claimed his first Grand Slam when beating Rafael Nadal in Melbourne.