TORONTO - Milos Raonic's injury woes have forced him out of another high-profile tennis tournament in Paris.

Organizers of the Paris Masters confirmed Wednesday on Twitter that the hard-serving Canadian has withdrawn from the event because of a back injury.

The tournament is a crucial stop for players trying to lock down one of eight spots in the ATP Tour final. Raonic is currently ranked 14th in the race to the lucrative London tournament and is all but certain to miss out.

Raonic also missed the French Open earlier this season after undergoing surgery to repair a nerve injury in his right foot.

The 24 year-old from Thornhill, Ont., later battled back problems during the U.S. Open, but appeared to be healthy when he won the St. Petersburg Open title last month.