Football fan jailed for attacking Sheffield 21 goalkeeper Aaron Cawley . Kirkland , six years , also banned from matches for six years following assault . Leeds supporter invaded the pitch during match and knocked Sheffield down . I felt the full force Leeds spokesman says the sentence was too lenient and club will ban him for life .
Football fan jailed for attacking Sheffield 21 goalkeeper Aaron Cawley . Kirkland , six years , also banned from matches for six years following assault . Leeds supporter invaded the pitch during match and knocked Sheffield down . Leeds spokesman says the sentence was too lenient and club will ban him for life .