Career
He is currently the manager of Portadown on an interim basis until the end of the 2015-2016 season, having been appointed in March 2016 following the resignation of Ronnie McFall after 29 years. Has previous post was as manager of Newry City, from March 2011 until his resignation in July 2012. He had previously been assistant manager at Monaghan United and manager of his hometown team Lurgan Celtic.
A year later, he was signed by Manchester United for £100,000.
He made his debut for the Red Devils in a League Cup tie against York City in September 1995. United lost the match 3–0 and McGibbon was sent official
He was loaned out to Swansea City and Wigan Athletic during the 1996-1997 season. McGibbon impressed in his only appearance for the Swans, before injury struck.
He trained some days with Manchester United during his time at Swansea and was injured in training, spending five months on the sidelines, requiring two operations.
McGibbon made ten appearances for the Latics during a successful loan spell at Springfield Park, and even scored the goal that guaranteed Wigan"s promotion to Division Two. Wigan signed McGibbon on a permanent deal in the summer of 1997, paying Manchester United £250,000 for the defender"s services (a fee which would eventually rise to £380,000). He was offered a two-year contract extension by United but opted to leave Old Trafford saying he wanted regular, competitive football.
In his five years at Wigan, McGibbon made over 150 appearances and scored 11 goals for the Latics.
However, he was granted a transfer request in 2001, and began to fall out of favour with manager Paul Jewell towards the end of his tenure at the Lancashire club In February 2002, he was loaned out to Scunthorpe United for two months with a view to a permanent deal.
However, McGibbon could not agree personal terms with Scunthorpe, and he returned to Wigan. Nevertheless, he was released that summer, and was soon picked up by Tranmere Rovers, managed by McGibbon"s former boss at Wigan, Ray Mathias.
However, McGibbon only stayed at Tranmere for a month, and moved back to Portadown in September 2002.
McGibbon did not complete a second season at The Oval, as he retired from professional football to go back to his physiotherapy business in Portadown in March 2003. Injury was originally cited as the reason for McGibbon"s retirement, but after he went on record with major criticisms of the Glentoran board, it became apparent that there were deeper reasons for his departure. He also made five appearances for the Northern Ireland B team