Purdy throws for 3 TDs, No. 14 Iowa State routs UNLV 48-3

Iowa State running back Deon Silas (22) scores a touchdown against UNLV during the second half of an NCAA college football game Saturday, Sept. 18, 2021, in Las Vegas. (AP Photo/John Locher)

Iowa State quarterback Brock Purdy (15) hands the ball off to running back Breece Hall (28) during the first half of an NCAA college football game against the UNLV, Saturday, Sept. 18, 2021, in Las Vegas. (AP Photo/John Locher)

Iowa State wide receiver Xavier Hutchinson (8) celebrates after scoring against UNLV during the first half of an NCAA college football game Saturday, Sept. 18, 2021, in Las Vegas. (AP Photo/John Locher)

UNLV quarterback Cameron Friel (7) hands the ball off to running back Charles Williams (8) during the first half of an NCAA college football game against the Iowa State, Saturday, Sept. 18, 2021, in Las Vegas. (AP Photo/John Locher)

Iowa State tight end Charlie Kolar (88) misses a catch against UNLV defensive back Phillip Hill (5) during the first half of an NCAA college football game Saturday, Sept. 18, 2021, in Las Vegas. (AP Photo/John Locher)

Iowa State linebacker Mike Rose (23) tackles UNLV running back Courtney Reese (26) during the second half of an NCAA college football game Saturday, Sept. 18, 2021, in Las Vegas. (AP Photo/John Locher)

Iowa State running back Breece Hall (28) scores a touchdown against UNLV during the first half of an NCAA college football game Saturday, Sept. 18, 2021, in Las Vegas. (AP Photo/John Locher)

Iowa State coach Matt Campbell congratulates running back Breece Hall (28) and tight end Charlie Kolar (88) during the first half of the team's NCAA college football game against UNLV on Saturday, Sept. 18, 2021, in Las Vegas. (AP Photo/John Locher)