Cornell University Athletics

Tretter was a second-team Associated Press All-American at the Football Championship Subdivision as a senior at left tackle. He was responsible for protecting record-breaking quarterback Jeff Mathews' blind side and allowed the Big Red to set new Cornell and Ivy passing records in his two seasons there. A preseason honorable mention FCS All-American by Beyond Sports College Network, he was part of a line that allowed the passing game to pile up 3,748 yards, a mark that ranked third in the FCS in 2012. He started each of his final 20 games at left tackle and is the first offensive lineman to earn first-team All-Ivy honors since Kevin Boothe in 2005. Tretter lettered his first two seasons as a tight end, even catching a touchdown pass as a sophomore at Columbia. He was taken with the 25th pick of the fourth round (122nd overall) by the Green Bay Packers in the 2013 NFL Draft and also played for the Cleveland Browns. He was named President of the NFL Players Association during the spring of 2020.