Gareth Jones was arrested after the match
A rugby player bit off a piece of a rival's ear in a fight during a game, a court has heard.
Flanker Gareth Jones, 25, of Cardiff side Star RFC allegedly attacked a player from the Rhiwbina team after the referee awarded them a penalty.
Daniel Hobbs, 25, left the pitch bleeding and needed 20 stitches to reattach his earlobe, Cardiff Crown Court heard.
Mr Jones, of Rhoose, south Wales, denies wounding with intent.
The court heard that Mr Hobbs' team Rhiwbina were only ten minutes into the match at home against fellow Cardiff side Star RFC when the fight kicked off.
Prosecutor Mike Jones told the court: "Rhiwbina were awarded a penalty but were blocked by opposition players.
"Both teams started pushing and shoving and Jones came face to face with Mr Hobbs.
"Jones grabbed hold of his upper arm, lent forward and purposely bit him on the left ear without any justification.
"Hobbs immediately felt a sharp pain and put his hand up to his ear. When he pulled his hand back it was covered in blood."
The jury heard that Mr Jones was arrested after the match.
Mr M Jones, prosecuting, said Mr G Jones had deliberately bitten off a piece of Mr Hobbs' ear.
"This manner of violence has no place in a game of rugby or any other sport," he said.
"It is deeply unpleasant, totally unnecessary and entirely unlawful."
The trial continues.