The injury woes for the Knights are on the rise, as Dylan Brown has suffered a knee injury during the clash with the Manly Sea Eagles.
In the 25th minute, Ponga went down clutching his right hamstring after crossing the try line.
Shortly thereafter, Dylan Brown was seen on the ground with trainers, having sustained an MCL injury while assisting Fletcher Hunt for a try.
He persisted until halftime, yet the pain was evident on Brown's face, leading to the decision for him to exit the match.
The playmaker is anticipated to be sidelined for about a month.
As it stands, the Knights' spine in the game against the Sea Eagles includes Fletcher Hunt at fullback, with Phoenix Crossland and Sandon Smith managing the halves, and Harrison Graham taking on the role of dummy half.