Nottingham Forest have asked the Premier League for permission to reinstate Steve Cook to their 25-man squad, after Scott McKenna and Willy Boly were ruled out for lengthy periods.
McKenna is set to miss six weeks, while Boly could be out for up to three months after both centre-backs suffered hamstring injuries in Saturday's 2-0 defeat at Fulham.
Moussa Niakhate, who Forest signed for £12.5 million from Mainz in the summer, is preparing to return from a long-term injury. However, Steve Cooper's side have only Felipe and Joe Worrall available at centre-back. Therefore, the Daily Telegraph have reported that Forest will disclose medical reports on Boly's condition to boost their case.