Central Florida - Memphis American football prediction

I put this bet up for free!! Obviously Early christmas gift from Bet365. 

Central florida Quarterback McKenzie Milton had a brutal knee injury last week and they’ll start a back up quarterback to this game. 

Memphis like to run the ball a lot and Central Florida will run the ball many times too since they have a back up quarterback to this game. 
Unless both teams score many points because of someone breaks out and runs big throughout the whole game, there is no way over 70,5 points is possible here!! 

Last time they met, it was back in 13th Oct and the game ended 31-30 to Central Florida. They had their starting quarterback in that game too!(memphis scored 30 in first half and 0 in second half so Central florida defense were able to stop the run when they played their A game! )