Purdue defensive end George Karlaftis (5) celebrates a Purdue defensive stop against Vanderbilt during the second half of an NCAA college football game in West Lafayette, Ind., Saturday, Sept. 7, 2019. Purdue defeated Vanderbilt 42-24. (AP Photo/Michael Conroy)

TCU's Garrett Wallow (30) and Innis Gaines (6) tackle UAPB's Tyrin Ralph during the first half of an NCAA college football game Saturday, Aug. 31, 2019, in Fort Worth, Texas. (David Kent/Star-Telegram via AP)

TCU coach Gary Patterson and the players wait in the tunnel before taking the field for an NCAA college football game against Arkansas-Pine Bluff on Saturday, Aug. 31, 2019, in Fort Worth, Texas. (David Kent/Star-Telegram via AP)

TCU's Jalen Reagor (1) is tackled by Aransas-Pine Bluff's Taeyler Porter during the first half of an NCAA college football game Saturday, Aug. 31, 2019, in Fort Worth, Texas. (David Kent/Star-Telegram via AP)

Purdue wide receiver Rondale Moore (4) holds off Vanderbilt safety Dashaun Jerkins (33) during the second half of an NCAA college football game in West Lafayette, Ind., Saturday, Sept. 7, 2019. Purdue defeated Vanderbilt 42-24. (AP Photo/Michael Conroy)

Purdue quarterback Elijah Sindelar (2) is tackled after a run by Vanderbilt safety Dashaun Jerkins (33) during the second half of an NCAA college football game in West Lafayette, Ind., Saturday, Sept. 7, 2019. Purdue defeated Vanderbilt 42-24. (AP Photo/Michael Conroy)