The Toulouse players were both due in Dublin to answer misconduct complaints emanating from the controversial European Cup clash with Ulster on January 21.

Brennan was charged under tournament regulations with allegedly entering a stand at the Stade Ernest Wallon and assaulting Ulster supporter Patrick Bamford.

But he secured a 24-hour High Court injunction on Thursday, forcing the temporary adjournment of his European Rugby Cup disciplinary hearing.

Thomas, however, is still expected in Dublin to face the panel and answer accusations he engaged in aggressive and offensive behaviour towards Ulster supporters.

A guilty verdict and suspension would almost certainly rule Thomas out of Wales RBS 6 Nations opener against Ireland at the Millennium Stadium on Sunday.

It adds to the selection dilemma facing head coach Gareth Jenkins ahead of the official team announcement on Thursday lunchtime.

The odds are that Jenkins could also be without injured wingers Mark Jones and Shane Williams, neither of whom are optimistic of proving their fitness in time for selection.

Jones has the best chance as he tries to shake ankle ligament damage, while Williams was still hampered by a nagging hip problem in training.

The Ospreys winger set himself a deadline of Wednesday night to prove he is ready but was not at all optimistic about making it.

If Jenkins loses Thomas to suspension, and at least one of the two wingers, he will have to name a patched-up back three, with Gavin Henson the likely full-back.

Employing Henson, and the huge kicking game he brings, in the 15 jersey would force Wales to play a different style against Ireland, the pre-tournament favourites.

Wales conducted in-depth analysis of the recent Tri-Nations - between New Zealand, Australia and South Africa - and discovered their tactical kicking game was way short of the levels required to compete with the worlds best.