Cub Swanson retires with first-round TKO victory over Nate Landwehr

42-year-old Cub Swanson finished his career with a first-round technical knockout victory over Nate Landwehr. The win marked Swanson's 31st professional victory and his final fight before retirement. Landwehr suffered his third consecutive loss in the bout. Swanson's farewell fight showcased his finishing ability as he closed out a long career on a winning note. The veteran featherweight's retirement ends a storied run in mixed martial arts.