Physically, Matthews was a
late bloomer.
His father was the team's defensive coordinator, but declined to start his son because he was physically undersized. Matthews began developing physically in his senior season, but only garnered interest from Division I
FCS schools and local
community colleges.
[1] He has described his own recruiting status out of high school as "not applicable."[2] Like his father and
uncle, Matthews opted to attend the
University of Southern California with hopes of becoming a
walk-on for the
Trojans football team.
Matthews entered USC as an unheralded, walk-on student athlete. During his first season,
USC's 2004 National Championship season, he played only on the
scout team and turned down several playing opportunities during
garbage time during the fourth quarters of games in order to preserve his
redshirt status and remaining seasons of NCAA eligibility. He remained a non-athletic scholarship (a "walk on"), reserve linebacker during the
2005 season, and played mainly on
special teams. He was granted full
athletic scholarship status at the beginning of the
2006 season. Matthews continued to play reserve linebacker in the 2006 and
2007 seasons, and made two starts in 2007 in place of injured teammate
Brian Cushing.
[1] He was awarded USC's Co-Special Teams Player of the Year in 2006 and 2007 and blocked two field goals in the latter season.
[3]
During the off-season, Matthews committed to weight training and conditioning programs to gain size and improve his performance level and stamina. At the beginning of the
2008 season, defensive coordinator
Nick Holt, Carroll and Norton decided to try using Matthews in a hybrid "Elephant" position, where Matthews would stand in the position of
defensive end, but use the speed and tactics of a linebacker; the coaches had used Cushing in the position in a similar manner in 2006.
[1] The experiment was successful, as Matthews recorded 4.5 sacks while playing alongside his other
NFL-bound teammates
Brian Cushing,
Rey Maualuga and
Kaluka Maiava. Furthermore, Matthews continued his spectacular special teams play and was awarded USC's Co-Special Teams Player of the Year in 2008, making him the only player in USC history to be awarded three consecutive Special Teams Player of the Year awards. Matthews was a participant in the 2009
Senior Bowl and was considered a top prospect for the
2009 NFL Draft[4]