1. Mix together all ingredients except for chicken and salt and pepper.
2. Cover and refrigerate 30 minutes until ready to use.
3. Season thawed chicken breasts with salt and pepper. Place chicken on an oiled cooking grate. Grill directly over medium heat about 4-6 minutes on each side or until internal temperature reaches 165°F.
4. Top grilled chicken with pineapple salsa and serve warm.
Tip: Salsa may be prepared and refrigerated up to 24 hours in advance.