Maryland is losing another running back from its roster, this time due to medical issues.

On Monday, Lorenzo Harrison III announced via Twitter that he will be medically retiring from football. The redshirt junior had one year of eligibility remaining at the collegiate level.

“During the last game I competed in, I suffered a severe knee injury,” Harrison wrote in a long message on Twitter. “Due to those circumstances which are far out of my control, I believe it is in my best interest to convert my focus from ball to the next great thing God has in store for me.”

Harrison’s first two seasons in College Park were outstanding, rushing for 633 yards and five touchdowns as a true freshman in 2016. He followed it up the next year by adding 622 yards and three touchdowns on the ground.

Injuries derailed Harrison’s career over the past two seasons. In 2018, he appeared in the first two games of the year before suffering an injury that kept him sidelined for the final 10 games. It was more of the same in 2019. Harrison appeared in just two contests and endured a knee injury that kept him out most of the year.

Over the last two seasons, Harrison has taken just 17 carries for 154 yards and one touchdown.

Harrison becomes the third major contributor of Maryland’s rushing attack to leave the program. Javon Leake and Anthony McFarland Jr. both announced at the end of the 2019 season their desire to pursue the 2020 NFL Draft. Leake was the team’s leading rusher with 736 yards and eight touchdowns. McFarland totaled 614 yards and eight touchdowns.