Southern California linebacker Cameron Smith, right, tackles Notre Dame quarterback Ian Book during the second half of an NCAA college football game Saturday, Nov. 24, 2018, in Los Angeles. Notre Dame won 24-17. (AP Photo/Mark J. Terrill)

Southern California linebacker Cameron Smith (35) celebrates after the defense sacked Texas quarterback Sam Ehlinger (11) during the first half of an NCAA college football game, Saturday, Sept. 15, 2018, in Austin, Texas. (AP Photo/Eric Gay)

USC linebacker Cameron Smith runs a drill during the NFL football scouting combine, Sunday, March 3, 2019, in Indianapolis. (AP Photo/Darron Cummings)

USC linebacker Cameron Smith runs a drill at the NFL football scouting combine in Indianapolis, Sunday, March 3, 2019. (AP Photo/Michael Conroy)

Southern California linebacker Cameron Smith (35) in the first half during an NCAA college football game against Arizona, Saturday, Sept. 29, 2018, in Tucson, Ariz. (AP Photo/Rick Scuteri)

Southern California linebacker Cameron Smith runs a play during the second half of an NCAA college football game against Arizona, Saturday, Nov. 4, 2017, in Los Angeles. USC won 49-35. (AP Photo/Mark J. Terrill)

Southern California linebacker Cameron Smith, right, tries to intercept a pass as he is grabbed by Washington State's Frederick Mauigoa during the first half of an NCAA college football game Friday, Sept. 21, 2018, in Los Angeles. (AP Photo/Jae C. Hong)

USC linebacker Cameron Smith runs a drill during the NFL football scouting combine, Sunday, March 3, 2019, in Indianapolis. (AP Photo/Darron Cummings)

Southern California linebacker Cameron Smith gets set to run a play during the second half of an NCAA college football game against Notre Dame Saturday, Nov. 24, 2018, in Los Angeles. Notre Dame won 24-17. (AP Photo/Mark J. Terrill)

USC linebacker Cameron Smith runs a drill during the NFL football scouting combine, Sunday, March 3, 2019, in Indianapolis. (AP Photo/Darron Cummings)

Southern California linebacker Cameron Smith works on a drill during USC Pro Day, Wednesday, March 19, 2019, in Los Angeles. The Pro Day is intended to showcase talent to NFL scouts for the upcoming draft. (AP Photo/Alex Gallardo)

USC linebacker Cameron Smith runs the 40-yard dash at the NFL football scouting combine in Indianapolis, Sunday, March 3, 2019. (AP Photo/Michael Conroy)

Southern California linebacker Cameron Smith runs a play during the second half of an NCAA college football game against Arizona, Saturday, Nov. 4, 2017, in Los Angeles. USC won 49-35. (AP Photo/Mark J. Terrill)

North inside linebacker Cameron Smith of USC (35) during the first half of the Senior Bowl college football game, Saturday, Jan. 26, 2019, in Mobile, Ala. (AP Photo/Butch Dill)

Southern California linebacker Cameron Smith (35) in the first half during an NCAA college football game against Arizona, Saturday, Sept. 29, 2018, in Tucson, Ariz. (AP Photo/Rick Scuteri)

Southern California linebacker Cameron Smith (35) in the first half during an NCAA college football game against Arizona, Saturday, Sept. 29, 2018, in Tucson, Ariz. (AP Photo/Rick Scuteri)

Southern California linebacker Cameron Smith gets ready for a play during the second half of an NCAA college football game against UNLV Saturday, Sept. 1, 2018, in Los Angeles. USC won 43-21. (AP Photo/Mark J. Terrill)