Preheat oven to 425F.
Season chicken with salt and pepper. Line a large baking sheet with foil. Spray foil with cooking spray.
Combine balsamic vinegar, olive oil, garlic, sugar, rosemary, oregano, and sage in a large bowl.
Add chicken and mix well until chicken is coated. Using your hands is the easiest.
Arrange chicken onto the prepared baking sheet in a single layer.
Bake for about 25 minutes or until the chicken is cooked through.