27. Ed Reed
A phenomenal safety for the Baltimore Ravens, he helped the franchise to win a Super Bowl. He even entered the Hall of Fame at the tender age of 42 after a magnificent career. A nine-time Pro Bowler, Reed was also the 2004 NFL Defensive Player of the Year. This shows how consistently brilliant he was, but like all athletes, he became old. Reed waited too long to retire.
Reed spent 11 seasons with the Ravens but continued to play up until the age of 35. Unfortunately, he fell into decline and tried to keep on going instead of retiring with dignity in Baltimore. His final season was split between Houston and New York but he failed to make a significant impact for either franchise. It’s by no means the worst entry on this list, but it was a shame to see him deteriorate.