Samoa 7s international Gordon Langkilde has pleaded guilty to assault charges after an altercation involving members of the Wales Sevens team.
The incident occurred after Wales' Rugby World Cup Sevens win over Samoa on 22 July in the United States.
Tom Williams suffered a broken nose and cheekbone while Luke Morgan and Ben Roach also suffered facial injuries.
The 22-year-old must pay compensation to the victims and withdraw from playing all rugby for a year.
He has also been ordered to write a letter of apology to the victims, complete 100 hours community service, donate $2,500 (£1,900) to charity and complete an anger management course.
