MANKATO, Minn. (AP) — A second suspect has been arrested in connection with a weekend fight that left a former Minnesota State, Mankato, linebacker critically injured.

Mankato city spokeswoman Shelly Schulz said Tuesday that a second suspect is in custody in the beating of 24-year-old Isaac Dallas Kolstad.

Schulz says she has no additional details but that authorities will issue an updated news release later in the day.

Former Minnesota quarterback 20-year-old Philip Nelson has already been charged with two counts of felony assault in connection with the early Sunday attack on Kolstad.

Authorities say Kolstad was struck by another man before Nelson kicked him in the head. Nelson's attorney says he was not the aggressor.

Kolstad is hospitalized with a severe head injury.