Career
Crossan began his career playing for Derry City, where he played as an inside forward. His talent was spotted by several leading English clubs, including Arsenal Football Club and Sunderland Football Club. When the latter made a substantial offer, Derry City offered Jobby a payment deal which he rejected, offering his own. When the Sunderland negotiations broke down, Derry City dropped Jobby, who signed for Coleraine.
Derry City, still aggrieved by Jobby"s actions, reported themselves to the Football League authorities for technical breaches of regulations, thus ensuring that Jobby would face disciplinary action.
In January 1959, a commission of inquiry imposed small fines on Derry and Coleraine, but banned Jobby from all forms of football for life. A partial lifting of the ban was allowed following an appeal, in May 1959 the inside forward signed for Dutch Champions Sparta Rotterdam, where he was first called up to the Northern Ireland squad.
He went from there to Standard Liège, where he played in the semi-final of the European Cup against Real Madrid. In 1963, Jobby returned to football in the United Kingdom (following the lifting of his "life-time" ban) when he was signed by Sunderland, with whom he made it to the old First Division.
He then signed for Manchester City who were playing in the old Second Division.
As team captain, he helped them make their way into the old First Division, before being sold to Middlesbrough after a loss of form following a car crash and other health problems. Internationally, he was capped 24 times by Northern Ireland and scored 10 goals. International goals
Scores and results list Northern Ireland"s goal tally first.
After his playing days, Jobby had a spell in management and took the top job at League of Ireland club, Sligo Rovers.
He resigned soon after. He also commentates for British Broadcasting Corporation Radio Foyle when they cover Derry City games.