Date of birth
Pompey swooped to sign Tunnicliffe over the summer following his departure from Luton.
He progressed through the ranks at Old Trafford and made a couple of senior appearances for Manchester United.
Tunnicliffe had several spells out on loan before signing for Fulham and briefly featuring for them in the Premier League.
Millwall was his next stop in the summer of 2017, with the midfielder spending two years at The Den and then moving to Luton.
Tunnicliffe made a total of 68 appearances in two years with the Hatters, helping to establish them in the second tier of English football.