Sports Authority will hold a grand opening Saturday for its new store at Kapolei Commons, the company's fifth in Hawaii.

The event will include appearances by former San Francisco 49er and University of Hawaii lineman Jesse Sapolu and local fishing enthusiast Louie "The Fish" DeNolfo.

As part of the grand-opening festivities, Sports Authority will be holding customer contests and prize giveaways throughout the day. The first 250 customers to attend the grand opening as the doors open at 8 a.m. will have the opportunity to win a $500 shopping spree. The store had a soft opening Thursday.

Sports Authority also will be giving away a $100 gift card every hour from 9 a.m. to 5 p.m. Customers can register for a chance to win additional prizes such as a signed Jerry Rice football, an SIMS bike, a HEAD tennis racket, and a Body Glove prize package.