Welsh rugby star Phil Booth has admitted attacking a man in a brawl that broke out at a Bee Gees tribute night.
Booth admitted inflicting grievous bodily harm
On Monday, the Wales A and Celtic Warriors prop was told he faces jail by a judge at Cardiff Crown Court.
The court heard that 27-year-old Booth was involved in a fight with other pub goers at the Bee Gees tribute night at the Hi-Tide Inn, Porthcawl, south Wales, last October.
He was on a night out with his wife, sister and her boyfriend.
Booth admitted inflicting grievous bodily harm on Ian Edwards.
Booth's sister's boyfriend, Warren James, 32, admitted the same charge and causing actual bodily harm to Leslie Crole.
Judge Philip Davies adjourned sentence for pre-sentence reports, but warned Booth to expect a jail sentence.
He said: "I make it abundantly clear there is a serious possibility of a custodial sentence in this case.
"You are in some jeopardy in that respect."
Booth's wife Rachel, 27, and sister Emma Booth, 22, were cleared of charges against them.
They agreed to be bound over to keep the peace for 12 months.
Booth joined Bridgend from Llanelli at the start of the 2002-3 season, scoring two tries as his club won the Welsh championship.
He had secured a place in the new Celtic Warriors regional side for the new season, which begins this week.
Booth, of Newton, Porthcawl, and James, of Selston, Nottingham, will be sentenced later this month.
They were remanded on unconditional bail.