Wigan Athletic Mitchell began playing in the youth ranks of local club
Manchester City before joining
Football League Second Division side
Wigan Athletic in 1999. On 7 December, Mitchell made his senior debut in a 2–1 victory against
Burnley in the
Football League Trophy First Round. After one season in the youth ranks, he was promoted to the senior squad and marked his 19th birthday with his league debut – a 3–1 win away to
Wrexham. Introduced as a 64th minute substitute, Mitchell was dismissed with a straight red card after just eight minutes for a professional foul on
Carlos Edwards. In March 2001, Mitchell joined
Football League Third Division club
Halifax Town on loan for the remainder of the season. Mitchell made a further 10 appearances as the club narrowly avoided relegation to the
National League by just two points. Mitchell returned to Wigan for the
2001–02 campaign and made 25 appearances in his first season back after breaking into the first team. He remained a regular starter as they celebrated winning the
2002–03 Second Division title with 100 points, but struggled to keep his place following promotion to the
First Division. Managing just 12 appearances in his first campaign in the higher tier, Mitchell opted for a second loan spell to gain further experience. In September 2004, Mitchell joined
Football League One club
Swindon Town on a one-month loan deal. He made his debut in 1–0 win at
Colchester United on 4 September and went on to make a further six league appearances. Mitchell's loan deal was initially extended for a further month, but injuries forced him to return to parent club after two weeks. Upon returning to Wigan Athletic, Mitchell made what would become his final appearance for the club in 2–0 win away to
Leeds United on 31 October. In December 2004, Mitchell returned to the Football League One with a loan spell at
Milton Keynes Dons. On 11 December, he made his debut in 3–0 win against
Wrexham. Mitchell made a further 10 league appearances and a single
FA Cup outing before his return to Wigan in March 2005.
Milton Keynes Dons In July 2005, Mitchell joined
Milton Keynes Dons on a permanent deal following his release from newly promoted Wigan. He became a first team regular and captained the team during the
2006–07 campaign. In January 2007, Mitchell joined league rivals
Wrexham on a three-month loan deal after struggling for game time at Milton Keynes. In early February, Mitchell was recalled by his parent club two months early. On 24 February, Mitchell was stretchered off in a 2–2 draw
Notts County. Scans revealed fractures to the tibia, fibula and ankle surfaces which would require 18 months of rehabilitation. Later that month, Mitchell signed for
Barnet on loan as part of his recovery process. A week later, he completed 90 minutes in a 4–2 defeat to
Dagenham & Redbridge in the
Football League Trophy. Mitchell made a further two appearances, with his final coming in a 1–1 draw with
Morecambe on 13 September. Mitchell was unable to complete a full recovery from the injury and was forced to announce his retirement on 12 January 2009 at the age of 27. ==Recruitment career==