French tennis star Jo-Wilfried Tsonga has withdrawn from next week\'s Sydney International with a hamstring injury, tournament organisers said on Saturday. The world number eight pulled out of the last major leadup event to this month\'s Australian Open after suffering the injury playing for France in the mixed teams Hopman Cup in Perth on Friday. \"Unfortunately Jo-Wilfried Tsonga sustained an injury in Perth and has been forced to pull out of the Apia International Sydney with a left hamstring injury,\" tournament director Craig Watson said. \"We wish him a speedy recovery and all the best for a successful Australian Open.\" Tsonga, the 2008 Australian Open finalist, would have been top seed for the Sydney International and compatriot Richard Gasquet, the world number 10, is expected to become the top seed for the men\'s draw to be made later Saturday. Source:AFP