Chris Czekaj will play alongside fellow Wales internationals Craig Morgan and Lee Jarvis when Cardiff travel to Pontypridd on Saturday.
The 22-year-old wing scored 13 tries in 18 Premiership games for the Blue & Blacks in 2004/05 and won his international cap at the end of that season before he played regional rugby.
Jarvis has taken his Cardiff career points' tally to 1189 in 92 games and returns to another of his old hunting grounds at Sardis Road - in four seasons with Pontypridd he amassed 717 points.
With Roger Davies injured and Leigh Halfpenny playing for the Blues, Morgan switches back to full back with Nathan Rees, who scored 11 tries in 10 games last season, filling the wing vacancy.
In the pack Matthew Veater makes his Premiership debut and Damian Welch moves from lock to flanker while Scott Roberts and Kristian Gay form a new prop combination.
Last season the Blue & Blacks completed a first Premiership double over Pontypridd, including a 23-10 victory at Sardis Road.
Cardiff: Craig Morgan; Nathan Rees, Gareth Chapman, Luke Ford, Chris Czekaj; Lee Jarvis, Owen Ruttley (captain); Scott Roberts, Kieran Crawford, Kristian Gay, Matthew Veater, James Down, Damian Welch, Adam Powell, Nick Hampson
Replacements: Rhys James, Richard Cornock, Craig Everett, Rhys Shellard, Garyn Lucas, Gareth Davies, Shaun James
Welsh players and management joined Deputy Minister for Sport Ken Skates at the Pierhead Building, Cardiff Bay earlier this week to reveal the Union's pioneering school-club hub initiative has been so successful the project will now almost double the scale of the original project.
The Scarlets, Newport Gwent Dragons, Cardiff Blues and the Ospreys look ahead to Judgement Day III which sees the Blues take on the Ospreys (2.30) and the Dragons tackle the Scarlets (4.45pm) at the Millennium Stadium tomorrow afternoon.
Ystradgynlais and Ynysddu played out a titanic struggle at Taffs Well in the SSE SWALEC Bowl semi-final. At the end of the game neither team could be separated after a 15-15 stalemate but Ystradgynlais go through on try count.
Blues strike first in JD III battle - Newport Gwent Dragons lock Andrew Coombs, WRU referee Dylan Llyr Jones and Cardiff Blues hooker Matthew Rees decide dressing room allocations for Judgement Day III
Wales Under 18 captain Calum Haggett has received a conditional offer to read Biomedical Science at St Anne's College, Oxford. WRU chairman Gareth Davies went to meet Calum and Coleg y Cymoedd Principal Judith Evans to wish him luck in his exams and pass on some of his personal experience.
Dodgy tattoos, carthorses, Avatar and soft chins are revealed by Wales Sevens players Tom Williams and Sam Cross as they profile the Wales Sevens squad taking part in Hong Kong this weekend in the latest round of the HSBC Sevens World Series.