Willie Hebert Jefferson III (born January 31, 1991) is a Canadian football defensive end for the Winnipeg Blue Bombers of the Canadian Football League (CFL). Jefferson is a 3-time Grey Cup champion, winning his first ring at the 103rd Grey Cup with Edmonton in 2015. He then won the 107th and 108th Grey Cups when his Blue Bombers defeated the Hamilton Tiger-Cats 33–12 in 2019, and then again in 2021, 33-25. He was named the CFL's Most Outstanding Defensive Player in 2019 with the Bombers, and is a three-time CFL and CFL West All-Star. Jefferson played college football at Stephen F. Austin University, he has also been a member of the Houston Texans, Edmonton Eskimos, Saskatchewan Roughriders, and Washington Redskins.