Although the 21-year-old has been trying to overcome a minor back injury since arriving in England on an 18-month deal just over two weeks ago, it has not curtailed his involvement on the training ground.
And that determination has not gone unnoticed by coach Craig Sandercock, who will watch the former North Queensland Cowboys star closely over the next five days.
Although Ulugia was not part of the travelling party for the defeat at Catalan, his lively and timely arrival is believed to be behind the decision to offload Greg Eden to Salford.
Having made two costly errors in the 37-24 reversal in Perpignan, Eden was immediately sent to the Red Devils for a month and his future now looks shrouded in doubt despite a year remaining on his deal.
Although he made a losing start to his Salford career by being knocked out of the Challenge Cup in a 30-20 defeat yesterday, Eden did survive an early barrage of towering kicks to make a solid start to his spell at the AJ Bell Stadium.
He also helped to set up a Gareth Hock try with a decent run from deep and knows he could earn a permanent stay if he shines.
With Ben Cockayne already preferred to the 23-year-old at full-back this season, the fact Ulugia can play there as well as on the wing and at centre now provides the Robins with even more cover.
If Ulugia's involvement in training is not restricted by injury this week, he could be handed a place in KR's 19-man squad for the arrival of Widnes on Sunday.
Whilst that will depend on the fitness of Cockayne, who did not feature in France because of a shoulder injury, the former NRL man has made it clear he is ready to make his debut whenever Sandercock gives him the nod.
