Wales may be spared the prospect of facing giant Wallaby Wendell Sailor after the wing was forced out of the game against Ireland early with a rib injury.
The former rugby league star went off after an hour of Saturday's success and the Wallaby management insisted he will not be risked against Wales if he is not fully fit.
However another former rugby league star Matt Rogers came though his comeback game from injury for club side Southern Districts over the weekend and is expected to be back in the frame for the Sydney clash.
Meanwhile, Test veteran Matt Burke was also set to join the Australia squad today after sitting out the Ireland game with a knee injury.
The 68-times capped full-back, who has scored 833 points in Test rugby, has been troubled by a medial ligaments problem but will be given his chance this week to prove his fitness in time for Saturday.
WRU International Skills Coach Jason Strange is a busy man, combining the new role with that of Wales Under 20 attack coach, Ebbw Vale head coach and continuing to teach at Ebbw Fawr Learning Community.
Warren Gatland and Sam Warburton look ahead to this week's crunch RBS 6 Nations tie against France, where the Wales skipper in particular is keen to make his mark, as Paris has proved a bleak place for him in the past.
Following their historic win over England, Wales Under 20 suffered a narrow, 36-34 loss to their Scottish counterparts last weekend, despite outscoring them by five tries to three. Watch the match highlights and reaction.
WRU TV go behind the scenes with the Wales squad as they put the final touches in place ahead of the clash against Scotland at Murrayfield. Follow the squad on their captain's run, the kickers visit to Murrayfield and Neil Jenkins' press conference