aston villa host qpr on tuesday night in a crucial relegation battle match .
managers tim sherwood and chris ramsey to put their friendship aside .
a win for qpr puts them out of the bottom three and above aston villa .
alan hutton , ashley westwood and scott sinclair are all out for villa .
in-form eduardo vargas out for qpr while bobby zamora 's on cotton wool .
click here for aston villa vs qpr team news , probable line ups & more .