Gary Speed will be without three experienced players for Wales's upcoming Euro 2012 qualifiers with Switzerland and Bulgaria.
Aston Villa's James Collins is currently nursing a knee problem, while Celtic's Joe Ledley misses the double-header with a groin complaint.
On-loan Ipswich Town defender Danny Collins will also be absent with a groin injury.
In the trio's place, Speed has opted to call-up Crystal Palace's Jonathan Williams and Bristol City's Lewin Nyatanga.
Wales are unable to qualify for the Championships in Ukraine and Poland next year.
