World number nine Jo-Wilfried Tsonga has pulled out of next week's Rotterdam event because of a stomach muscle injury.
"The problem started in the fourth round of (last month's) Australian Open against Nicolas Almagro," the Frenchman told his website (www.jowiltsonga.fr) on Friday.
"It bothered me in the quarter-final against Novak Djokovic and in the semi-final against (eventual winner) Roger Federer. I hope I'll be able to go back to training next week without serving."




