Huddersfield Town midfielder Dean Whitehead has been ruled out for up to eight weeks with a knee injury.
The 33-year-old was forced off during Saturday's 2-0 win at Birmingham City, which was the Terriers' first victory under new head coach David Wagner.
The former Middlesbrough player could miss up to nine Championship games, with a number of those coming over the festive season.
"Gutted I cant help lads in busy Christmas period, i feared more serious injury," Whitehead wrote on Twitter.
"I'll be working my hardest to get back asap! I'm a fan for next six to eight weeks."
Whitehead has made 19 appearances for Huddersfield since joining from Boro in the summer.
