Unfortunately the NBA is out of town this weekend.
Bricktown is always fun, catch Pro Bass while you're there. I always enjoy going to the Western Heritage museum (Cowboy Hall of Fame). OKC Zoo is nice anytime.
Also, if you are down near Bass Pro, you would also be close to part of the Bricktown Canal and to the Land Run statues. The statues are right south and slightly west of Bass Pro.