Who is the greatest running back of all time? How about the most dominant team in NFL history? What was the best play ever? Sports Illustrated has polled its experts, asking them to list their Top 10 answers to these and other questions that pro football fans have been debating ever since the pigskin starting flying. Football's Greatest will rank the best of the best, explaining the methodology while paying tribute to those chosen with material from SI's rich historical archive. Fans will not only be able to see how our experts rate, for example, Johnny Unitas against Brett Favre against Tom Brady, but they will also be able to sample classic coverage of those superstars. This book is sure to spark debate around the country as fans compare their rankings to those determined by Peter King, Tim Layden, Damon Hack and the rest of SI's NFL insiders. Which player will rate highest among linebackers - Lawrence Taylor or Dick Butkus or Ray Lewis? How about franchises - which is the greatest of all, the Packers, the Steelers or the Cowboys? What better way to celebrate the best of America's most popular sport than with the greatest stories and photographs from America's favourite sports magazine?