John Aldridge says Liverpool supporters are not used to the chorus of booing heard recently at Anfield as the pressure increases on manager Brendan Rodgers.
On Wednesday the Reds scraped through the third round of the Capital One Cup at home to Carlisle on penalties following a 1-1 draw after extra time.
Rodgers' side are also 13th in the Premier League having gone four games without a win after starting with back-to-back victories.