Catalans forward Greg Bird is facing a spell on the sidelines after suffering a torn bicep in the win over Wigan at the Nou Camp.
Bird, 34, underwent surgery on Monday and will be out for “a significant period” according to the club.
The Dragons say he “should be back to play a role towards the end of the season.”
The former Australia international started the game in the halves and was forced off with the Dragons winning 2-0.
They went on to win 33-16 in front of a new Super League regular season record crowd of 31,555.