Mannone, 28, sustained the problem in training and joins the Black Cats' growing injury list.
Liverpool manager Jurgen Klopp has admitted that striker Daniel Sturridge is still lacking match sharpness, but is "all you need" when 100 percent.
Jurgen Klopp insists his Liverpool side will go all out to try and win the League Cup after coming so close to lifting the trophy last time.
Burton manager Nigel Clough insists the Brewers' forthcoming matches against Liverpool and Derby are nowhere near as daunting as a trip to Doncaster.
Assistant manager Mark Bowen insists Stoke are not taking Stevenage lightly as they prepare for their EFL Cup tie against the League Two club.