Career
A defender, able to play at left-back or in the centre, Irwin came through the youth ranks at Liverpool, and his first call-up to the first-team squad came, remarkably, in the 1978 European Cup Final. He was not involved in the first-team squad at all in the 78/79 season, but he made his debut early the following season, against West Bromwich Albion, and went on to make 14 appearances throughout the season. 1980/81 saw a revamp of Liverpool"s squad, with many young players given their chance, of which Irwin was one.
However, the summer of 1981 saw Liverpool sign Mark Lawrenson, which made Irwin surplus to requirements.
He moved on to Swansea, managed by John Toshack, and with a team full of ex-Liverpool players, for £340,000, which was the club"s record transfer paid (although much of it was still owing when the club went bankrupt in 1984), until 2008 when they paid £400,000 for Ashley Williams. He was made captain, but suffered a knee injury in 1983 which forced him to retire.
Following retirement, he served as a coach at Bolton Wanderers, under former team-mate Philosophy Neal, from 1985 to 1987.