Itoje required on-field therapy through the first half after colliding with Hunter Paisami shortly earlier than half-time. The England lock then left the sector for a head harm therapy and didn’t return for the second half.
Underhill was changed through the second half of the 25-17 victory at Suncorp Stadium having suffered a head harm whereas tackling wing Marika Koroibete and he has now been stood down for Saturday’s conflict.
No replacements can be referred to as up, with Lewis Ludlam and Ollie Chessum prone to begin within the pair’s place on the Sydney Cricket Floor for the decider.
It comes within the wake of Tom Curry returning dwelling final week after being concussed within the first Take a look at and England have solely escaped a full-blown harm disaster at flanker by the information that Jack Willis has been cleared to coach.
Further reporting by Press Affiliation.