He retired due to injury in July 2012 and went on to coach at Sheffield United, serving the club as caretaker manager over two separate spells in 2013.
[2] He began his career at Barnsley, and made his first-team debut under Danny Wilson in a 6–0 defeat to West Ham United in a Premier League tie at Upton Park on 10 January 1998.
[3] He was one of three "Tykes" players sent off in a 3–2 defeat to Liverpool at Oakwell on 28 March after his arm appeared to make contact with Michael Owen's head.
He played 19 First Division games under John Hendrie's stewardship in the 1998–99 campaign, and was in a 3–1 home defeat to Norwich City on 8 September.
[5][6] He also scored his first goal in professional football in a 3–2 League Cup victory over Bradford City at Valley Parade on 12 October.
[21] He was voted as United's Player of the Year for 2004 and following the departure of Rob Page in the summer, Morgan was named as the club's new captain by manager Neil Warnock.
[26] He played 30 games of the 2007–08 campaign under Bryan Robson and Kevin Blackwell, and was twice sent off for receiving two bookable offences in wins over Preston North End and Hull City.
He played nine games at the start of the 2010–11 season under Gary Speed, making his final appearance in professional football in a 1–0 home defeat to Coventry City on 30 October.
[35] In July 2012, during the Blades' pre-season tour of Malta, Morgan announced his retirement from professional football as he had not appeared for the first-team for almost two years due to a long-standing cruciate ligament problem and was now an established member of the coaching staff at Bramall Lane.
During the 2011–12 season, while still a registered player but unable to play due to injury, he led United's reserves to the Central League title.
[38] Despite United winning Morgan's first game in charge,[39] results did not significantly improve and they failed to clinch promotion, losing to Yeovil Town in the semi-final of the League One play-offs.
[40] Despite publicly expressing his desire to take on the role on a permanent basis, Morgan was overlooked for the post of full-time manager in favour of former Scotland defender David Weir.
[43] On 30 December 2015, Sheffield United announced that they had "reluctantly" released Morgan, and that he would be joining Chesterfield as first-team coach under manager Danny Wilson.