He started his career as an apprentice at Middlesbrough, and enjoyed 212 games in 10 years for the Riverside club. If it was his good perfomances against City I don't know, but in September 1993 he was brought to Maine Road as Brian Horton's first signing to help sort out the defence. He managed quite well the first two seasons, but after some really poor games, and with City constantly dropping on the table, Alan found himself as a favourite only to the boo-boys. He had numerous loan spells, but despite the many changes in staff, he never got another chance after Alan Ball definetly put him out of the team.
Finally he managed to get back into the game, and it was Scottish club St. Johnstone who decided to agree terms with the out of favour defender, and was given a free transfer in return. Alan played 78 games in total for Manchester City, he managed to get capped 15 times for Ireland while he was with the Blues. In total he was capped 22 times, and scored 1 goal for his country, the same amount of goals he made for City in 63 league games.
1/12 2004: Alan Kernaghan was Assistant Manager to Allan Preston at SPL side Livingston, until both were relieved of their duties this week. The pair were dismissed after a run of seven straight defeats left them bottom of the Bank of Scotland Premier League and out of the CIS Insurance Cup. Kernaghan, who played 78 games for the Blues in the inglorious 1993-1997 period, had rejected the opportunity to speak to Inverness Caledonian Thistle earlier this month to stay with Livi.