Sheffield United discovered that sometimes wrong decisions can produce the right results.
Three days after their harsh FA Cup exit at Hull
, Kevin Blackwell's side were the beneficiaries of contentious refereeing as Birmingham were on the receiving end - courtesy, ironically, of the man who was fourth official at the KC Stadium last Thursday.
Lee Mason will be squirming again when he sees both...
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Sheff Utd 2 Birmingham 1- Ref Mason in the firing line again as Blades get lucky 
