It was heartbreak for John Mousinho’s men who levelled through substitute Paddy Lane with 16th minutes left – only for Luke Thomas to secure the points at the death.
It was a real mixed bag from Pompey, with some disappointing displays amid so encouraging performances – and here are our player ratings...
13. Christian Saydee - 6
(Replaced Alex Robertson on 52 mins) Definitely made an impact, but wasted two glorious chances late on to win the game for the Blues. Has to do better in such prized positions. Photo: Jason Brown
14. Paddy Lane - 7
(Replaced Jack Sparkes on 72 mins) Lovely finish to level and put plenty into his left-back/left wing-back role. Photo: Jason Brown
15. Kusini Yengi - 6
(Replaced Gavin Whyte on 72 mins) Added a different threat from the bench, which was welcome. Photo: Jason Brown
16. Portsmouth midfielder Alex Robertson (8) during the EFL Sky Bet League 1 match between Bristol Rovers and Portsmouth at the Memorial Stadium, Bristol, England on 26 December 2023.
Pompey midfielder Alex Robertson tries to make something happen in the first half against Bristol Rovers. Picture: Jason Brown/ProSportsImages Photo: Jason Brown