CORVALLIS — Aiden Sullivan heard it before he felt it.
While running toward the end zone in the second game of his sophomore year of high school, a teammate fell on his plant leg. Sullivan’s tibia and fibula snapped. From the stands, his mother watched a kid who always seemed to get up writhe on the turf in pain.
By the following season — with the help of a titanium rod and four screws, along with extra recovery time due to the COVID-19 pandemic — Sullivan was back on the field…