Norwich City striker Josh Sargent will have to prove his fitness at the US's final training session ahead of Saturday's World Cup last-16 tie against the Netherlands.

Sargent suffered a right ankle issue late on in the midweek 1-0 Group B victory over Iran after riding a challenge, and over-extending his leg after standing on the ball. 

The in-form forward had scans to assess the damage and US head coach Gregg Berhalter admitted he is a concern for this weekend's knock out game.

US captain Christian Pulisic is another fitness doubt after suffering a pelvic injury scoring the winner against Iran.

"With Christian we are hopeful. Maybe with Josh, less so, but this is go time now," said Berhalter, speaking at his pre-match press conference on Friday lunchtime. "If you can push through it, you do. We're going to test him (Josh) in training later. I'm sure he'll have that same mindset."

Sargent has started two of the US's three group games, and had been a pivotal member of City's Championship squad, scoring nine goals in 19 matches.

The 22-year-old has been one of the standout performers for Dean Smith's men. 

Those performances for the Canaries saw him force his way back into the international set-up, culminating in a call-up to Berhalter's 26-man squad for the tournament. 

Norwich, who currently sit fifth in the table, resume their Championship campaign away at Swansea on December 10.