West Ham United defender James Collins has withdrawn from the Wales squad to face Serbia ahead of Saturday's World Cup qualifier.
The Welsh FA has confirmed that MK Dons' Joe Walsh has been called up as a replacement.
Collins started the Hammers' 1-1 draw with Stoke City at the London Stadium on Saturday, but will play no part for Wales during the international break.
Chris Coleman's side are unbeaten in their World Cup qualifying campaign so far having won one and drawn two, with seven goals being scored in that time.
