Philippine internationals Neil Etheridge and Paul Mulders are doubtful to join the squad in the upcoming friendly against Azerbaijan in Dubai after the pair suffered an injury.
Etheridge returned to Crewe Alexandra, on loan from Fulham FC, last night and featured in their 0-1 loss against Stevenage. The goalkeeper will be with the Football League One side until April 13, 2014.
Mulders recently joined SC Cambuur in the Dutch Eredivisie and will be with the club until the end of the season.
Both players were last called up to the national team in the 2013 Philippine Football Peace Cup.