Erik Guay's back problems cause him to pull out of Lake Louise super-G
Canadian also missed Saturday's downhill due to injury
Back problems continue to plague Canadian ski star Erik Guay as he withdrew from Sunday's World Cup super-G race in Lake Louise, Alta.
The 36-year-old from Mont-Tremblant, Que., is the reigning super-G champion after winning gold in St. Moritz, Switzerland, in February.
Guay also pulled out of Saturday's downhill, which was won by Swiss skier Beat Feuz.
Back issues limited Guay's training prior to arriving in Lake Louise. He says his back worsened in Friday's training run.
Guay is Canada's most decorated alpine skier with 25 World Cup medals and three world championship medals.
The Canadian team travels to Beaver Creek, Colo., for the next World Cup stop starting Friday.