$3.165 billion Owner:
Manager Alex Ferguson retired this year after leading United to its record 20th league title. Sir Alex was at the helm for 27 years and helped create one of the most valuable brands in sports. The team's record shirt sponsorship deal with General Motors for the automaker's Chevrolet brand kicks off in 2014-15 and is worth $559 million over seven years. (AFP/Getty Images) More From Forbes
: The World's 50 Most Valuable Sports Teams 2013 The World’s Highest-Paid Athletes Baseball's Most Overpaid Players The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.