Aston Villa have been left sweating on a fresh injury setback for Chris Herd.
Herd is nursing a knee problem sustained on his international debut for Australia.
Herd won his first international cap in last night's 2-0 friendly defeat to Belgium in Liege, but limped off just before half-time.
Socceroos coach Ange Postecoglou played Herd at right-back until he was forced off in the 44th minute.
Herd is now doubtful for Monday's practice match against Saudi Arabia at Craven Cottage, as Australia prepare for the 2015 Asian Cup, reports the Birmingham Mail.
