The Notre Dame Fighting Irish open the 2021 college football season at the Florida State Seminoles on Sunday but already experienced a costly loss. 

Per Tom VanHaaren of ESPN, Notre Dame head coach Brian Kelly told reporters Monday that linebacker Marist Liufau underwent surgery to repair a broken and dislocated ankle that he suffered in practice last Wednesday and will likely miss the entire season. Kelly compared it to the setback former Alabama Crimson Tide wide receiver Jaylen Waddle encountered last fall. 

Liufau, a junior, recorded 22 total tackles and 1.5 tackles for loss during the 2020 campaign. Irish Illustrated listed him as the 12th "most impactful player" on the team for the upcoming season.