Drew Allar was once considered a likely top NFL draft pick, but a poor senior showing and season-ending injury could mean big trouble for the QB.

Penn State quarterback Drew Allar underwent successful surgery on Wednesday to address his broken left ankle, according to ESPN's Pete Thamel. Allar sustained the injury -- the extent of which had not been divulged -- last Saturday in the Nittany Lions' 22-21 loss to Northwestern,

Penn State football quarterback Ethan Grunkemeyer will get his first college start at Iowa, in place of injured Drew Allar.