The Australian made it the perfect start to life at Fratton Park, with the Blues heading for an opening-day defeat against Bristol Rovers.
Trailling to Luke Thomas’ first-half goal, Yengi rose at the far post to finished Joe Rafferty's right-wing cross and make it 1-1 in the 92nd minute in front of the Fratton faithful.
There were some eye-catching displays on show and here are our Pompey player ratings...
13. Portsmouth midfielder Tom Lowery (26) during the EFL Sky Bet League 1 match between Portsmouth and Bristol Rovers at Fratton Park, Portsmouth, England on 5 August 2023.
Tom Lowery, who was substituted at the break, in first-half action against Bristol Rovers. Photo: Jason Brown
14. Christian Saydee - 8 - Man of the Match
(Replaced Tom Lowery on 46 mins) What an introduction for the powerful striker, who lifted Pompey's performance following his half-time introduction. Operating behind Colby Bishop, he shook up Rovers, inspired the Fratton faithful and changed the team performance. He's going to be fun this season! Photo: Jason Brown
15. Abu Kamara - 7
(Replaced Gavin Whyte on 65 minutes) Handed his debut off the bench and showed tenacity, pace and a bit of skill as Pompey finished strongly. Very encouraging from the Norwich man. Photo: Jason Brown
