louis van gaal says manchester united can still win the barclays premier league , even though his side sit eight points behind leaders chelsea having played a game more going into the run-in .
van gaal also admitted that marouane fellaini has become almost undroppable , given his performances in united 's recent run of form .
victory over saturday would put some pressure on neighbours manchester city - currently second - who do n't play until monday at crystal palace .