Worrell signed for Blackburn from Shelbourne in January 1995 but had not made a first team appearance before he moved to Dundee United in March 1999.
The right back made nineteen league appearances for the Scottish club before moving to Plymouth Argyle and went on to make over 150 league and cup appearances for the Home Park club during a successful spell in which they gained promotion twice.
At the end of the 2006–07 season, Worrell was released following Rotherham's relegation from League One, before Dundee announced his signature.
[3] In June 2008, Worrell left Dens Park to sign for Montrose, having decided to combine part-time football with another career.
In addition, he played once for the Republic of Ireland B team in February 1998 featuring alongside future internationals such as Damien Duff, Richard Dunne and Robbie Keane.