A La Crosse firefighter is expected to recover from the injuries suffered Saturday morning at the Valley View Mall. W-K-B-T / T-V reports crews were called to the mall about a fire on the roof shortly before 7:00 a-m. The flames were spotted on top of the building going up as the new home for a Hy-Vee grocery store. Investigators say the fire was caused by welding materials. The injured firefighter was taken to the Mayo Clinic Health System for treatment. No names have been released. That fire is not considered to be suspicious.