Nottingham Forest are sweating on the fitness of Morgan Gibbs-White ahead of Sunday's clash with Arsenal.
The England international picked up a calf injury in last weekend's defeat at Crystal Palace and has not trained all week.
He is expected to train with the squad on Saturday and will be assessed before the visit of the champions.
"Morgan Gibbs-White is a doubt, he couldn't train the entire week with us," boss Oliver Glasner said. "But it looks like he can join tomorrow's session.
"He had an individual session today with our rehab coaches, and he suffered a minor muscle injury at Palace. Then we have to see how he reacts today and how he deals with tomorrow's session, and then how we take the final decision."
Forest will also assess Nikola Milenkovic, who has returned to training after a bone bruise.
"Milenkovic trained for the first time today," Glasner said. "Let's see now how he reacts.
"He could be in the matchday squad, but let's see, because he's now out for several weeks."
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