Huddersfield defender Joel Lynch has been forced to withdraw from the Wales squad for their World Cup qualifiers against Scotland and Croatia due to a knee injury.
The 25-year-old centre-back had to sit out the Terriers' 1-0 win at Birmingham on Saturday after complaining of discomfort during a training session on Thursday.
It has now been discovered Lynch has a small piece of bone floating in his knee and he has therefore dropped out of manager Chris Coleman's squad for Friday's game with Scotland and next Tuesday's clash with Croatia.
"Joel will wear a brace for the next four or five days to help the healing process," said Huddersfield manager Simon Grayson.
"He'll return to see the specialist at the end of this week and hopefully will be given the all-clear."
Lynch has made six appearances for Huddersfield since arriving on a free transfer from Nottingham Forest in the summer.
Meanwhile, Barnsley striker Craig Davies has been called up by Wales for the back-to-back games.
The 26-year-old won the last of his five caps in 2008 and is back in Coleman's plans as Cardiff forward Craig Bellamy has a knee injury.
Swansea midfielder Jazz Richards and Bristol City defenders Lewin Nyatanga and James Wilson have also also given the call to represent their country.