Put the chicken legs with the skin side down, debone them but be careful not to tear the skin. Put the meat between 2 plastic bags and gently tenderize with a wooden mallet. Sauté the bacon in a medium oven for about 5 minutes, along with celery, onion and garlic.
Mix the two types of rice with the sautéed vegetables and season them. Fill the inside of each leg with the mixture. Wrap the meat around the filling and flip them over. Place them on parchment paper and brush with oil. Cut strips of aluminum foil and wrap the drumsticks with them, fasten them with toothpicks.