Here's a comprehensive summary of Geneo Grissom's Wikipedia article:

Geneo Grissom (born June 4, 1992) is a former American professional football defensive end who played college ball for the Oklahoma Sooners before being drafted by the New England Patriots in the third round (97th overall) of the 2015 NFL Draft. During his college career, he made headlines with a 54-yard interception return for a touchdown against Texas in 2013 and a standout performance in the Sugar Bowl versus Alabama, where he recorded 2.5 sacks, recovered two fumbles, and returned one for an 8-yard touchdown. At Oklahoma's 2015 pro day, Grissom impressed scouts by also running tight end drills, earning praise from Patriots head coach Bill Belichick, who said his work was "as good as we saw all year." As a rookie in 2015, he appeared in 14 games, primarily on special teams and as a reserve, finishing with six combined tackles and his first career sack against Dolphins quarterback Ryan Tannehill. Over his four college seasons, he amassed 88 tackles, 8 sacks, and 2 interceptions, and after his NFL career, he retired as a former professional player.