Many people have blamed relegation on bad luck with injuries. This article seems to show that Wolves were actually one of the luckiest teams last year where injuries were concerned.
http://www.teamtalk.com/bolton-wanderers/7788441/Ravaged-Red-Devils-top-of-the-crocks
http://www.teamtalk.com/bolton-wanderers/7788441/Ravaged-Red-Devils-top-of-the-crocks