2012 Football Roster
Roster

Mac O'Brien
- Position:
- Defensive Line
- Class:
- Junior
- Hometown:
- Waterloo, Iowa
- High School:
- Columbus
2013: Redshirted due to injury.
2012: Saw action in all 11 games and started 10 ... recorded 25 total tackles on the season including 13 unassisted and 12 assisted ... notched four TFLs and two sacks ... finished the season with one interception ... had a season high five tackles against Western Illinois (11/3), including a sack for a loss of three yards ... recorded a sack for a loss of 10 yards against South Dakota State (10/20).
2011: Saw action in three games as a reserve on the defensive line ... tallied one assisted tackle on the year in a 38-10 victory over Western Illinois (9/24).
2010: Played in eight games on the defensive line ... recorded five tackles on the season ... made a career-high three tackles at Western Illinois (11/20).
2009: Redshirted.
High School: Named the Waterloo Columbus Most Valuable Player in 2008 ... an all-state, all-metro and all-district performer as a senior ... three-year starter at fullback and linebacker for the Sailors ... as a fullback he rushed for more than 1,700 yards and 18 touchdowns ... in 2008, he recorded 61 solos tackles, 42 assisted tackles, 11 tackles-for-loss and two interceptions from the middle linebacker position ... finished his career with 194 solo tackles, 140 assisted stops, 37 tackles-for-loss and three interceptions ... his 194 career solo tackles are the most recorded by a Sailor player in the last 20 years ... solid student as well with a 3.67 cumulative grade point average and was involved in student government throughout his high school career.
Personal: Son of Donna and Joe O’Brien … father was a former UNI football player from 1981-1984 … majoring in biology.