Selected by the Cardinals in the third round (65th overall) of the 2019 NFL Draft, Allen appeared in 32 games (22 starts) during his first three seasons.
2021: Saw action in 15 games (14 starts) during the regular season and set career marks in tackles (48), solo tackles (30), sacks (4.0), QB hits (14), fumble recoveries (3) and passes defensed (4); also recorded his first career INT (Week 13) and first career TD (Week 18) ... started in his postseason debut and totaled four tackles … in the season opener @ Ten (9/12), started at DT for a defense that held the NFL's two-time leading rusher Derrick Henry to 58 yards on 17 attempts (3.4 avg.) ... registered two tackles (both solo) and a fumble recovery on the final play from scrimmage @ Jax (9/26) ... recorded five tackles (four solo), a sack, two tackles for loss and a QB hit vs. SF (10/10), including a fourth down stop in the fourth quarter to force a 49ers turnover on downs ... missed Games 6-7 on the Reserve/COVID-19 list ... in his return from the Reserve/COVID-19 list, registered six tackles (two solo), a sack and a QB hit on Thursday Night Football vs. GB (10/28) ... tallied five tackles (four solo) with a tackle for loss, a QB hit and a fumble recovery vs. Car (11/14) ... registered five tackles (three solo), a QB hit and one pass defensed for a defense that held the Seahawks to just 13 points @ Sea (11/21) ... tallied four tackles, a sack and his first career INT @ Chi (12/5); picked off an Andy Dalton pass in the fourth quarter and returned it 25 yards to the CHI 12-yard line to set up an AZ TD two plays later ... registered four tackles (three solo), a sack, a tackle for loss and two QB hits vs. LAR (12/13) ... recorded three tackles (two solo), two QB hits and recovered a Russell Wilson fumble on the second play from scrimmage vs. Sea (1/9/22); picked up a loose ball following a Chandler Jones sack and returned it 16 yards for the first score of the game and his first career TD ... started and finished with four tackles in his playoff debut @ LAR (1/17/22).
2020: Appeared in 13 games (seven starts) and tallied 35 tackles, five tackles for loss, 2.0 sacks, six QB hits and three passes defensed while missing three games on injured reserve ... recorded two tackles, his first-career sack, a tackle for loss and a QB hit in the season-opener @ SF (9/13); part of a defense that held the 49ers to just two conversions on 11 third down attempts (18%) ... had one tackle and a QB hit for a defense that limited the Jets to 162 net passing yards and 4-of-13 on third down @ NYJ (10/11) ... part of a defense that held the NFL's #3-ranked offense to season lows in points (10) and TDs (one) on Monday Night Football @ Dal (10/19) ... placed on injured reserve (ankle) on 10/27, designated to return on 11/24 and activated on 11/28 ... started and had three tackles including a tackle for loss in his return from injury @ NE (11/29) ... totaled three tackles, one QB hit and a pass defensed for a defense that allowed season lows in points (seven), total net yards (159) and first downs (10) @ NYG (12/13) ... started and led the Cardinals with a career-high 11 tackles to go along with his second-career sack, a tackle for loss, a QB hit and a pass defensed vs. Phi (12/20); brought down Jalen Hurts for a 14-yard sack in the third quarter ... tallied five tackles, one tackle for loss and one pass defensed @ LAR (1/3/21).
2019: Played the first four games (one start) and was inactive (neck) for the next six contests before being placed on injured reserve in Week 11 ... totaled eight tackles, one tackle for loss and three QB hits ... started and recorded three tackles and two QB hits in his NFL debut vs. Det (9/8); joined fellow draft picks Kyler Murray, KeeSean Johnson and Byron Murphy to mark the first time since the 1970 NFL-AFL merger that the Cardinals had multiple rookies start on both sides of the ball in a season-opener ... tallied two tackles and one tackle for loss taking down Lamar Jackson for a five-yard loss @ Bal (9/15).
Appeared in 50 games in four seasons and totaled 199 tackles, 40.5 tackles for loss, 18.5 sacks, 16 passes defensed, four fumble recoveries, two INTs and two blocked kicks … over his final two seasons, had 161 tackles, 30.5 tackles for loss, 12.5 sacks, 12 passes defensed, two INTs and two fumble recoveries ... started all 12 games he played and totaled 61 tackles, a career-high 6.5 sacks, 15 tackles for loss, an INT and a career-high eight passes defensed as a senior in 2018 … earned All-ACC second-team, Pro Football Focus second-team All-America and New England Football Writers All-New England Team honors ... started 13 games, led BC with 6.0 sacks, ranked 10th in school single-season history with 15.5 tackles for loss and finished the year as one of two defensive linemen with 100+ tackles nationally during his junior season in 2017 … recipient of the 79th annual George 'Bulger' Lowe Award (New England's Heisman Trophy and one of America's oldest college football awards) and was an All-ACC honorable mention selection … had 36 tackles, 10 tackles for loss, 6.0 sacks, four pass breakups, three QB hurries and two fumble recoveries in 13 games (one start) as a sophomore in 2016 ... played all 12 games, primarily on special teams, as a freshman in 2015.
Named the 2014 Connecticut Gatorade Player of the Year as a senior at New Canaan (CT) High School ... earned the NFF National High School Scholar-Athlete Award for the Northeast Region … a three-year starter for the Rams, winning two state titles in 2013-14 ... named a captain as a senior ... set the school record for career sacks with 33.0, the single-season record with 13.5 in 2014 and tied the single-game record with 4.0 on Thanksgiving in 2014 ... named New Haven Register's Player of the Year, CHSCA Player of the Year and MSG Connecticut Varsity Player of the Year … member of the Walter Camp All-Connecticut High School Team and was a finalist for Player of the Year … member of the USA Today All-USA Connecticut team … had 102 tackles, 18 tackles for loss, two INTs, seven forced fumbles, one fumble recovery, 12 passes defensed and scored one defensive TD in his senior season ... added three TD receptions as a TE with seven catches for 75 yards … also played basketball, earning All-FCIAC honorable mention … National Football Foundation Scholar-Athlete, member of the National Honor Society and four-year high honor roll student … Finance major in the Carroll School of Management and was the recipient of the Cecilia B. and Richard J. Canning Athletic Scholarship Fund.
