Dean Henderson is set for several weeks on the sidelines through injury.
Nottingham Forest's Cumbrian goalkeeper injured his thigh in their 2-0 win over Leicester City at the weekend.
And reports suggest the Whitehaven star will be sidelined for three to four weeks.
The Telegraph and the Mail report that he will be missing for that period, in a blow to Forest boss Steve Cooper.
Henderson has been a key player for Forest during a season-long loan from Manchester United, helping them climbing the Premier League table and reach the Carabao Cup semi-finals.
READ MORE: Cumbrian star praised for "sensational" loan debut
Speaking after the Leicester game, Cooper said the 25-year-old would be going for a scan, and added: "My first impression is, not good," Cooper said, speaking in NottinghamshireLive.
"But scans will tell more, with more clarity in the next day or two. We will have to see how that goes."
Saturday's game against Leicester saw a sixth clean sheet of the season for Henderson, whose side are now 13th in the table.
Forest are now likely to turn to Wayne Hennessy to deputise for the Cumbrian.
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