Garrett, the presumed No. 1 selection in the draft, was not one of the 22 prospects listed to attend the event, according to the NFL.
Alabama tight end O.J. Howard, another player projected as a first-round selection, will also miss the event. North Carolina quarterback Mitchell Trubisky, Clemson quarterback Deshaun Watson, and Notre Dame passer DeShone Kizer will attend. Stanford defensive end Solomon Thomas also plans to attend.
Ohio State will send Gareon Conley and Marshon Lattimore. Buckeyes safety Malik Hooker won't be in Philadelphia. LSU will have Leonard Fournette, Tre'Davious White, and Jamal Adams in attendance. Alabama players Jonathan Allen and Cam Robinson and Washington's Kevin King and John Ross will also be there.
Garrett's absence is not a huge surprise. The Houston Chronicle reported in February that he would watch the draft with his family at home in Arlington. Cleveland Browns hold the top selection in the draft, and are currently "split" between selecting Garrett or Trubisky, sources told ESPN.
In 2015, No. 1 pick Jameis Winston also skipped out on the NFL Draft in Chicago in order to be with his grandmother.
The Aggies' first-team All-American and All-SEC pick had 8.5 sacks in 11 games last season, despite battling a knee injury. He is listed as 6 feet 4 inches tall and weighs 272 pounds. Garrett, 21, ran a 4.64 40-yard dash at the 2017 NFL scouting combine.