Ponty flanker Wayne O'Connor comes in to freshen up the back row.
Pontypridd's run in to the end of the season is taking the form of a steeplechase, with one hurdle after another in quick succession as the team plays catch up on the Premiership's leading pack.
Next up for Ponty is an away match against traditional rivals Cardiff, the Arms Park clash tomorrow afternoon (KO 2:30pm.)
Following an emphatic bonus point home victory over Swansea midweek, Ponty will be going all out for a win on the road to close the nine point gap on league leaders Neath.
It was on Boxing Day 2011 that Pontypridd recorded a home league win over Cardiff in a hard fought encounter, as reflected in the final score-line of 18pts to 13. Another tough assignment against the Blue and Blacks is due come Saturday afternoon.
In an attempt to keep players fresh during a demanding run of fixtures, it is a case of mix and match in the selection policy for the Cardiff game.
Coming into the starting line up are wing Matthew Nuthall, scrum half Lewis Jones, prop Stuart Williams, hooker Huw Dowden, lock Cory Hill and flankers Jake Thomas and Wayne O'Connor.
The last five years have been an emotional rollercoaster on and off the pitch for RGC1404. Promotion to the Principality Premiership was the culmination of five years of hard work and investment in North Wales. WRU TV caught up with prop Joe Simpson, who was one of the first intake of WRU North Wales Academy players in 2010.
Ebbw Vale captain Damien Hudd picked up the biggest accolade of the night at the 11th Principality Premiership Awards Evening held at Principality Stadium, after leading his side to the title for the first time.
Wales assistant coach Robin McBryde is predicting a tough battle against England on Sunday despite the fact they may not be considered to be at full strength. Players will be out to impress Eddie Jones which makes England a dangerous proposition, he says.
Wales U20 captain Tom Phillips and performance psychologist Dr Rich Neil explain why spending three days at Monmouth RFC has further strengthened the togetherness of the squad ahead of the #WorldRugbyU20s