Eugene, OR, United States (4E Sports) – The Oregon Ducks will be losing an important piece to their title chase after starting lineman Tyler Johnstone tore his anterior cruciate ligament (ACL) again in practice.
Johnstone primarily suffered the injury December, in a 30-7 victory against Texas in the Alamo Bowl.
He will undergo surgery Friday and is expected to recover within 8-12 months.
The 2012 Freshman All-American was permitted by doctors to ease into practice.
He was hoping to get back to his starter duties for the Ducks against South Dakota on August 30.
But during a pass blocking drill, Johnstone said he heard a popping noise in his right knee.
After having it examined, the results showed Johnstone re-injured his ACL.
Oregon wanted to have its original five starters along the offensive line from last year.
These starters led the Pac-12 in the offense category with 565 yards per game, rushing 273.5 yards per game and scoring 45.5 points per game.
The leading candidate for Johnstone’s replacement is junior Andre Yruretagoyena who has 11 games of experience.