The 64th-minute substitute, who came on for Callum Lang, collected Marlon Pack’s pass to race through and net past Oxford keeper Jamie Cumming in front of the Fratton End to secure a 2-1 vicory.
Earlier Lang’s 88-second opener was cancelled out by Cameron Brannagan’s penalty and it remained a close contest. with neither side managing to dominate.
Yet Saydee was the hero – and here are our Pompey player ratings...
9. Callum Lang - 8
(Replaced by Christian Saydee on 64 mins). Opened the scoring after 88 seconds, aided by keeper Cumming. His directness and energy constantly posed problems but, crucially, picked up a booking in first-half. In the end, had to be substituted to avoid a red card following several niggling fouls. Photo: Jason Brown
10. Colby Bishop - 8
(Replaced by Kusini Yengi on 88 mins) Played a role in Pompey’s opener with a clever chested pass to Kamara. For Saydee’s goal, the referee crucially allowed play to carry on after the striker was fouled. Some really good link-up play throughout and looked back to his normal self. Photo: Bryn Lennon
11. Abu Kamara - 7
(Replaced by Josh Martin on 88 mins) Claimed an assist with the final pass to Lang for the Blues’ opener, but otherwise extremely quiet. Good to see him tracking back and helping out Rafferty on occasions. Photo: Jason Brown
12. Goal, Portsmouth forward Callum Lang (49) scores,. Portsmouth 1-0 Oxford United during the EFL Sky Bet League 1 match between Portsmouth and Oxford United at Fratton Park, Portsmouth, England on 2 March 2024.
Callum Lang opens the scoring for Pompey against Oxford United. Picture: Jason Brown/ProSportsImages Photo: Jason Brown