Sheffield United have reportedly suffered a ‘shattering’ injury blow ahead of tomorrow’s encounter against Arsenal. The Gunners head to Bramall Lane having won their last six league games and with fire in their belly to maintain this incredible run of form against the Premier League cellar dwellers. Sheffield United have won just three games all season with Chris Wilder’s side sat on 13 points and looking like a sure-bet to return to the Championship having only won promotion last season. Sheffield United suffer Rhian Brewster injury blow ahead of Arsenal tieAnd according to journalist Alan Ni…