In a blender or food processor combine the marinade ingredients and blend until smooth. In a bowl or ziplock bag combine 3/4 of the marinade and the chicken together and let sit in a refrigerator at least 1 hour.
Reserve the remaining 1/4 cup marinade for glazing the chicken breast as the cook.
Heat a grill to medium heat and cook the chicken 3-4 minutes on each side until it reaches an internal temperature of 165 degrees.
To make the Mango Salsa:
Combine all of the salsa ingredients with the lime juice and toss gently.
Serve the warm chicken breast with fresh mango salsa over the top. This is great with rice, black beans and tortilla chips!