NSW Blues say Isaah Yeo should have been taken off after State of Origin head knock

• Lock appeared wobbly on his feet but stayed on field
• Blues player insists he was not concussed in early hit-up

Isaah Yeo insists he was not suffering concussion symptoms when he staggered out of the first tackle of State of Origin, despite a NSW official admitting he thought the lock should have been brought off.

Yeo's health became one of the chief talking points out of NSW's series-opening 16-10 loss at Accor Stadium in Sydney when his head appeared to make contact with a rampaging Josh Papalii on the first hit-up of the game.