Try Pertama Shopping Complex (any taxi driver can bring you there). Or if you can try KL Monorail and get out at Medan Tuanku station. As some members mentioned b4, can try Racquet World (G-67) or Etakoh (1-40, G-62, G89). I spent half day there buying stuff for my buddies
Try call racket world at Pertama Complex 03-2692 9111. Alternatively you get on to Star LRT and stop at Bandaraya Station near Sogo and walking distance to Pertama Complex.