(CNN) — Rutgers quarterback Philip Nelson has been arrested on suspicion of assault in southern Minnesota, police said.
He is suspected of attacking Isaac Kolstad, 24, a former linebacker at Minnesota State University.
Nelson, 20, was taken into custody early Sunday morning, according to a statement from Mankato, Minnesota, police.
Officers found Kolstad near a downtown intersection. He was transported by ambulance to a local hospital.
A Rutgers spokesman declined to comment on the case.
“We are in the process of gathering information on the situation and reserve comment until the legal process is complete,” said Jason Baum.
Nelson is a recent transfer to Rutgers. A native of Mankato, Minnesota, he played at the University of Minnesota, according to Rutgers website.
Kolstad graduated from Minnesota State University in December.
He suffered a severe heard injury, according to a statement from his family.
“He is currently in critical condition and fighting for his life. He is young and strong, but the battle he has in front of him is enormous,” it read.
“We do know that his brain did sustain permanent damage. We do not yet know to what extent and won’t for many days. He is very sick. Please pray for Isaac and all of those involved.”
Police have said they are looking for another person believed to have been involved in the assault.