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...
18. Portsmouth midfielder Marlon Pack (7) during the EFL Sky Bet League 1 match between Portsmouth and Bristol Rovers at Fratton Park, Portsmouth, England on 5 August 2023.
Marlon Pack in action in the first half against Bristol Rovers. Photo: Jason Brown
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