A man who ran on to the pitch after an FA Cup game and punched a Stevenage player has been jailed for 12 weeks and given a six-year ban from grounds.
Robert Fitzgerald, 24, was caught by TV cameras hitting defender Scott Laird at the end of the 3-1 win against Newcastle United on 8 January.
Magistrates in Stevenage heard Fitzgerald's girlfriend had previously been in a relationship with Mr Laird.
Fitzgerald, of Colts Corner, Stevenage, admitted common assault.
In his defence he said Mr Laird had "not treated his former girlfriend correctly".
Fitzgerald also pleaded guilty to entering the field without lawful authority.
Stevenage Magistrates also fined him £100.