He’s not the first to leave Fratton Park to join up with his former manager. We’ve had a look at what happened to all 28 permanent signings Cook made during his time in PO4.
21. Milan Lalkovic (signed from Walsall)
Another former Pompey player with a fairly nomadic career. Signed in June 2016 but was already out on loan at Ross County by January. Has since played for Czech First Division sides Sigma Olomouc and FC Baník Ostrava. Photo: PinPep Media / Joe Pepler
22. Tom Davies (signed from Accrington Stanley)
As a boy Davies had trials with Manchester United and Manchester City, and first played league football for Accrington Stanley in 2015. Joined Pompey in 2016 before signing for Coventry in 2017. Joined Bristol Rovers this year. Photo: Habibur Rahman
23. Curtis Main (signed from Doncaster)
As a mainstay of Pompey match squads in League Two but struggled to dislodge Brett Pitman and Ollie Hawkins once the Blues were promoted. Signed for Motherwell on an 18-month deal in 2018 and joined Aberdeen this summer. Photo: -
24. Jamal Lowe (signed from Hampton & Richmond Borough)
Farewell Jamal. The hero of Pompey's League Two title-winning campaign and last season's Checkatrade Trophy final signed for Wigan Athletic this week - reuniting with former boss Paul Cook. Photo: Joe Pepler