Newport Gwent Dragons are ‘very disappointed’ with the Welsh Rugby Union's failure to keep Taulupe Faletau in the country.
The dynamic backrow will move to Premiership side Bath next summer, drawing criticism from Newport chairman Martyn Hazell, who said the WRU were unwilling to pay extra to keep him.
Faletau refused to sign a national dual contract last season as he tried to join Bath after the World Cup in November.
That move was blocked by Wales head coach Warren Gatland so he then agreed terms with the Dragons.
However, it was then announced that he will join Bath next summer after talks with the WRU broke down.
"I am very disappointed at the WRU. We had agreed a new contract with Taulupe and he was happy to stay with us," Hazell said.
"It required the union to come up with more money and they wouldn't. I don't blame him for moving to Bath.
"We have been turned over by our own union. This affair has cost us €550,000 in the transfer fee from Bath, who throughout all this have been excellent, and in wages.
"We will now receive nothing when Taulupe leaves us at the end of the season at the end of his contract, and the WRU will not give us any compensation."
