McCombe signed for Mansfield Town on 1 June 2013, and was described by manager Paul Cox as "a commanding player who will add knowledge and experience to our defence".
He left Field Mill by mutual consent in January 2014, having made only seven starts for Mansfield in 2013–14.

McCombe signed for League Two club York City on 12 January 2014 on a two-and-a-half-year contract, after his release from Mansfield.
He made his debut as an 85th-minute substitute for Ryan Jarvis in a 2–0 away defeat to Hartlepool United on 25 January 2014.
On 15 February 2014, he scored a brace and claimed an assist in a 4–0 victory at Plymouth Argyle, earning himself a mention on the Football League team of the week.
He was again named in the team of the week after making a block on the line from a Hallam Hope shot in a 1–0 win over Bury on 21 April 2014.
On 1 February 2016, McCombe left Bootham Crescent by mutual consent after not playing a match three months into new manager Jackie McNamara's tenure.
McCombe signed for Mansfield Town on 1 June 2013, and was described by manager Paul Cox as "a commanding player who will add knowledge and experience to our defence". He left Field Mill by mutual consent in January 2014, having made only seven starts for Mansfield in 2013–14.
McCombe signed for League Two club York City on 12 January 2014 on a two-and-a-half-year contract, after his release from Mansfield. He made his debut as an 85th-minute substitute for Ryan Jarvis in a 2–0 away defeat to Hartlepool United on 25 January 2014. On 15 February 2014, he scored a brace and claimed an assist in a 4–0 victory at Plymouth Argyle, earning himself a mention on the Football League team of the week. He was again named in the team of the week after making a block on the line from a Hallam Hope shot in a 1–0 win over Bury on 21 April 2014. On 1 February 2016, McCombe left Bootham Crescent by mutual consent after not playing a match three months into new manager Jackie McNamara's tenure.
John McCombe