SI's team of experts answer once again tackle the questions pro football fans have been debating since the pigskin started flying. Who's the greatest quarterback of all time? The most dominant linebackers? In 2012, Sports Illustrated sought to answer this question in Football's Greatest. In the past five years, new players have come on the scene, coaches have come and gone and great games have been played. Through it all, SI has been there, analyzing, tracking, photographing and reporting on every game as only SI can. Now, in Football's Greatest: Revised and Updated, an all-new team of experts comes together to debate everything that makes football, football - whether it's the best players, the best on the defensive line, the cheerleaders, or the stadiums, our team of experts have ranked them. Additionally, for this revised and updated edition, we've added a "Roundtable with the Stars" that includes some of the most legendary NFL Hall of Famers discussing whom they consider to the greatest. We've also added two new categories to the rankings: "Rivalries" and "Most Entertaining Players," that makes Football's Greatest: Revised and Updated an essential addition to any football fan's library. Once again, this is the book that's sure to end many arguments, and help start some new ones.