Mix all ingredients in a plastic slide-lock bag and marinate at least 30-60 minutes.
Preheat grill to medium-high heat.
Add chicken and grill on each side 4-5 minutes on each side or until thermometer inserted into the center of the meat reads 165º.
Remove and serve.
Notes
Why Lea & Perrin's? It doesn't have gluten, corn, dairy, or soy. Most other brands we have found contain gluten or soy.If you have a fish allergy, you could substitute coconut aminos, balsamic vinegar, or an allergen free barbecue sauce for the worcestershire sauce.