Wales fly-half Dan Biggar must stop moaning to referees so vociferously, says former captain Martyn Williams.
The 28-year-old frequently complained to referee Glen Jackson in Wales’ Six Nations loss to Ireland.
“It is something he has to take out of his game,” Williams told BBC Scrum V.
“Senior players have to say ’50-50 calls might go to the other team because you constantly complain’.”
Williams added: “He is one of the senior players. They have to pull him aside and say ‘Dan you are killing us here’.
“Referees are human and if someone is into you all the time you don’t get the calls.
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“For 60 minutes of that game he did not stop complaining.
“At this level that is unacceptable, you can’t be complaining all the time. If he is going to penalise Ireland he is going to penalise Ireland, whether you throw your arms in the air or not.
“We are all competitive and all want to win but the best team 10 you have ever seen, [former New Zealand fly-half] Dan Carter, is the coolest guy you will ever see.”