Waiting on Subway's monthly featured $5 footlong is becoming a game we thoroughly enjoy. While July saw the temporary addition of the chain's Italian B.M.T. sandwich to the $5 list, the month of August will get a chicken sub -- The Buffalo Chicken Sandwich. The sandwich's nutritional stock makeup contains 840 calories, 30 grams of fat and 50 grams of protein. The sandwich will be available at the $5 price first of August and will run the course of the month!