Vance Rupp, 7, of Polk City, Iowa rides a sheep during a Mutton Bustin' competition at the Tyson Fan Zone & Marketplace at Mandalay Bay Thursday, Oct. 24, 2013. Riders must be four to seven years old and weigh 60 lbs. or less. Rupp won the morning competition.The event was part of the the 2013 Professional Bull Riders Built Ford Tough World Finals. Rupp won the morning competition.