Birmingham City have been fined 42,500 after a Blues fan attacked Aston Villa captain Jack Grealish last season, reports BBC Sport,
Paul Mitchell ran onto the pitch and hit Grealish from behind during March's Championship derby between the sides.
Mitchell was jailed for 14 weeks on 11 March.
An independent regulatory commission has also warned Blues about its future conduct, having been found to fail to ensure the supporter conducted himself in an orderly fashion.
