VIDEO: All Blacks sweat over key player

INJURY UPDATE: The All Blacks will be keeping a close eye on one of their star players in the coming days.

Prop Tyrel Lomax limped off the field during New Zealand's 73-0 win over Uruguay in the World Cup Pool A match on Thursday.

The prop was replaced in the eighth minute by Fletcher Newell, who was also forced off late in the match.

The injuries are a big concern for the All Blacks who booked their place in the World Cup quarterfinals on Thursday.

After the match, New Zealand head coach Ian Foster eased concerns over Newell.

However, he cast doubt over the availability of Lomax, stating it could be a "little bit more serious".

“Fletcher was largely precautionary with his knee," Foster said.

"Tyrel is a little bit more serious but we don’t know how serious. It looks like a medial [strain].

"Those who know medials they can be a small strain or a large strain. It doesn’t look too bad.

“He’s got a bucketload of ice on his knee at the moment. We’ll look at that over the next 48 hours. Fortunately, we’ve got a couple of extra days which could be meaningful for us.”

The 27-year-old Lomax returned to action on Thursday after he suffered a deep gash on his upper leg during the defeat to South Africa in the World Cup warm-up match at Twickenham.