Glenn famously became the first player in history to don the uniform of all nine teams in the league, though he only appeared in a game for six of them.
The 40-year-old first broke into the CFL in 2001 with the Saskatchewan Roughriders. He made his way to the Winnipeg Blue Bombers in 2004, the Hamilton Tiger-Cats in 2009, the Calgary Stampeders in 2012, and the BC Lions in 2014. Glenn then went back to the Roughriders in 2015 before trades sent him to the Montreal Alouettes that same year and to the Blue Bombers in 2016. He returned to Saskatchewan for a third stint in 2017 before finishing up his career with the Edmonton Eskimos in 2018.
Despite lasting 18 seasons, Glenn never won a Grey Cup. He led the Blue Bombers to the championship game in 2007, but an injury prevented him from playing for the title. He got another chance to win a ring in 2012 with the Stampeders, but fell to the Toronto Argonauts.
In 268 career appearances, Glenn threw for 52,867 yards with 294 touchdowns and 207 interceptions. He also rushed for 1,580 yards and 13 touchdowns.
Glenn was a CFL East All-Star in 2007.