Wales coach Warren Gatland has revealed that George North is unhappy with being left out of this weekend's Six Nations clash against Scotland.

The winger has been rested for the match at Murrayfield after suffering concussion during last Friday's defeat to England.

Despite showing no symptoms of concussion, protocol dictates that North must stay on the sidelines in order to make a full recovery.

The Welsh Rugby Union has come under criticism during the past week after the 22-year-old was kept on the field of play against England despite his head injury.

"He's not a happy man. He's disappointed that we've ruled him out," Gatland is quoted as saying by BBC Sport. "The precautionary thing is to make the positive decision about George and his welfare. I think it's a very mature decision."

North has made 46 appearances for Wales since 2010.