McDonald, Davis propel Hawaii past UNLV 21-7.

Hawaii wide receiver Cedric Byrd II (6) carries the ball after a reception during the first half of an NCAA college football game against UNLV in Las Vegas, Saturday, Nov. 16, 2019. (Steve Marcus/Las Vegas Sun via AP)

Hawaii running back Miles Reed (26) is tackled by UNLV defensive back Tykenzie Daniels, top, and defensive back Bryce Jackson (24) during the first half of an NCAA college football game in Las Vegas, Saturday, Nov. 16, 2019. (Steve Marcus/Las Vegas Sun via AP)

UNLV wide receiver Darren Woods Jr. (10) tries to make a catch with Hawaii defensive back Rojesterman Farris II (4) in pursuit in the first quarter of an NCAA college football game Saturday, Nov. 16, 2019, in Las Vegas. (Benjamin Hager/Las Vegas Review-Journal via AP)

UNLV defensive back Sir Oliver Everett (33) tackles Hawaii wide receiver Cedric Byrd II (6) in the second quarter of an NCAA college football game Saturday, Nov. 16, 2019, in Las Vegas. (Benjamin Hager/Las Vegas Review-Journal via AP)

UNLV linebacker Austin Ajiake (27) tackles Hawaii wide receiver Cedric Byrd II (6) in the second quarter of an NCAA college football game Saturday, Nov. 16, 2019, in Las Vegas. (Benjamin Hager/Las Vegas Review-Journal via AP)

UNLV wide receiver Darren Woods Jr. (10) makes a catch and runs for a touchdown past Hawaii defensive backs Rojesterman Farris II (4) and Eugene Ford (8) in the first quarter of an NCAA college football game Saturday, Nov. 16, 2019, in Las Vegas. (Benjamin Hager/Las Vegas Review-Journal via AP)