Blues front-rowers Ofa Tu'ungafasi and Kurt Eklund have been cited for dangerous play during their team's loss to the Crusaders at Auckland's Eden Park on Sunday.
Prop Tu'ungafasi was yellow-carded for shoulder-charging Crusaders lock Scott Barrett's chin in an attempted ruck clear out, while hooker Eklund was penalised for his pro-wrestling style suplex of wing Sevu Reece.
Upon review, the SANZAAR foul play committee deemed that both incidents deserved red cards.
Both players will face judicial hearings on Monday evening and can be considered highly doubtful to face the Chiefs in Hamilton on Saturday.
The rulings have increased the heat on referee Paul Williams, who was partially responsible for a couple of mistakes in both the previous weekend's matches.
Chiefs halfback Brad Weber conceded a penalty try and was shown a yellow card, after forcing a knock-on by Crusaders first-five Richie Mo'unga, while Blues centre Rieko Ioane had a try disallowed due to a forward-pass ruling. Williams was the third match official on both occasions.
Referees boss Bryce Lawrence later admitted both decisions were incorrect.
"By our own standards, we were a bit disappointed with some of our work," Lawrence said. "There were a couple of calls we didn't get right."
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