Leeds United can ill afford to let anymore first-team defenders go without any replacements coming in. The Whites have already lost Djed Spence and Luke Ayling this month, but injuries to both Pascal Struijk and Archie Gray have left them looking really stretched for numbers at the back. Charlie Cresswell has also heavily been linked with an Elland Road exit with a number of offers having been turned down, and now another Leeds centre-back is wanted elsewhere. According to Alan Nixon, Blackburn Rovers have launched a surprise enquiry for captain Liam Cooper after losing out in the race to sign…