Ranking the top 10 undrafted NFL free agents of all time

2. Warren Moon
Moon was a star for the Washington Huskies, winning the MVP of the 1977 Rose Bowl. However, Moon went undrafted, joined the Edmonton Eskimos in the CFL, and helped them win five straight Grey Cups.
Moon signed with the Houston Oilers in 1984, joining his former CFL coach, Hugh Campbell. After leading the NFL in interceptions in 1986, Moon turned things around and led the league in passing yards during the 1990 and 1991 seasons. He threw for 49,325 yards, 291 TDs and made six Pro Bowls before entering the Hall of Fame.

