In this method, a braided fiber envelope is slid over the core of the hockey stick blade and a promoted resin is applied on the core and the fiber envelope. At least one pre-cured reinforcement panel is provided on at least one side of the blade. The resulting assembly is heat pressed so as to secure the reinforcement panel to the blade and shape the blade. A hockey stick shaft constructed in accordance with this method is also disclosed. This construction provides a lighter hockey stick blade with improved mechanical properties compared to previous ones.