For sauce, in a small saucepan combine catsup, water, brown sugar, vinegar, Worcestershire sauce, red pepper, and cinnamon.
Cook and stir till bubbly.
Rinse turkey drumsticks and pat dry.
Place drumsticks in center of the cooking grill.
Grill 1 to 1 1/4 hours or till tender and meat thermometer registers 180Â°F (82Â°c, generously brushing with sauce during the last 15 minutes of grilling time.
Heat any remaining sauce and pass with turkey.
Note: To determine the doneness of turkey drumsticks, test with a meat thermometer near the end of the grilling time.
Insert the thermometer bulb into the thickest part of the drumstick so it does not touch the bone.