Colorado State University Pueblo

Earned Rookie Mini-Camp invitations from the Cleveland Browns and Denver Broncos. Following a successful tryout with the Broncos, signed a contract with his hometown team. 

2018 (Sr.): All-RMACFirst Team Defense … All-NFFCCFirst Team Defense ... Preseason All-RMAC… Started all 13 games at nose guard … Finished with 56 tackles (19 solo) … Closed the year with 5.5 sacks (-34 yards) to rank fourth on the team and totaled 9.0 tackles for loss (-41 yards) … Added to the scoring with a safety at Colorado Mesa (Oct. 13).

2017 (Jr.): Don Hansen All-Super Region Four Third Team ... All-RMAC First Team ... All-NFFCC Second Team ... Started all 12 games at nose tackle ... Finished third on the team with 59 tackles (30 solo) ... Added 7.5 tackles for loss (-20 yards) to rank third on the team ... Had one sack (-5 yards) ... Recovered a fourth quarter fumble and returned it 15 yards to set up a field goal and move the score to 30-24 in a win against then-No. 8 Colorado Mesa ... At the end of the regular season, the ThunderWolves were top 20 nationally in scoring defense (10th), total defense (10th), turnovers gained (11th) and passing yards allowed (18th).

2016 (So.): Saw the field in eight games as a reserve defensive lineman and on special teams... Gathered 17 tackles (six solo) ... Added a tackle for loss (-3 yards) and a half sack (-3 yards) ... Blocked two kicks, an extra point versus West Texas A&M (Sept. 10) and a field goal against Dixie State (Nov. 5) ... Recorded a season high five tackles (2 solo) against Fort Lewis (Oct. 15) ... NFFCC Academic Honor Roll.

2015 (Redshirt): Redshirt.

2014 (Fr.): Appeared in eight games and totaled six tackles (3 solo) ... Added three sacks (-22 yards) and three tackles for loss of yards (-22 yards).

High School: Also competed in track and field... Was coached in football by Mike Schmidtt... Was awarded All-Centennial League honors.

Personal: The son of Donald and Alexandria Sizer ... Has one younger brother, Davontay ... His mother played collegiate basketball at Dillard University ... A psychology major at CSU-Pueblo.