Prepare Pineapple-Cucumber Salsa; set aside.
Combine soy sauce and next 4 ingredients in a shallow dish; stir well.
Add fish, turning to coat.
Cover and marinate in refrigerator 30 minutes.
Remove fish from dish; discard marinade.
Place fish on grill rack coated with cooking spray; cover and grill 4 minutes on each side or until fish flakes easily when tested with a fork.