Samoa head coach Viliamu Punivalu says he plans to speak with the referees manager after two second half sin-binnings proved costly in his side's 28-16 loss to Argentina at the Junior World Rugby Championship.
The Baby Manu led 9-3 midway through the opening half.
But three tries either side of halftime, including a penalty try, saw the Young Pumas take hold of the game as Samoa had two players sent to the sin bin.
Viliamu Punivalu says he felt the decisions were harsh.
"It cost us the game but like I said it's no excuse, but I thought we have to have a look at a review of the tape and we might have to take it up with the"
referee manager of IRB for the tournament. We thought that the referee was a bit harsh on us but we will look at that and make some feedback to the referee manager.
The loss keeps Samoa bottom of Group C and ends their hopes of qualifying for the semi finals.
The Fiji Under 20 team suffered their second heavy defeat of the tournament, thumped 46-3 by Ireland in Pool B.