Glen Johnson has insisted Chelsea are the only side who can really challenge Manchester City for the Premier League title, claiming Liverpool's lack of squad depth could hamper them.
The Blues beat Pep Guardiola's defending champions three times in six weeks last campaign, in the FA Cup semi-final, Premier League and Champions League final respectively.
And former Chelsea and Liverpool full-back Johnson told BonusCodeBets that adding striker Romelu Lukaku made Thomas Tuchel's side a 'real threat'.
He said: 'Any team that wants to try and take on Manchester City will have to improve from last season.