So the domestic transfer window is still open till October 15th, meaning Liverpool could still sign players from the Championship.
Here are three goalkeepers just worth remembering -

Tim Krul - Norwich.
Market value - 3.6mil
Dutch international, would in theory have a good understanding with compatriot VVD.
Made some fantastic saves for Norwich last season & has plenty of experience.
At 32years old, the chance of a "big move" might be too tempting to say no.

Ben Foster - Watford
Market value - £1.08mil
England International. At 37 years old, Foster is in the twilight of his career, however his experience and reliability far outweighs any age concerns.
Qualifying as a homegrown player, he could easy slot into the squad.

Jack Butland - Stoke City
Market Value £5.85mil
At just 27, Butland has become the forgotten man of English football. Long time regarded as England& #39;s future no.1, making his international debut 8years ago! Jack& #39;s commitment to staying at Stoke has seen him fall off people& #39;s radar

The chance to play in both the Premier League and Champions League would fulfill many of Butland& #39;s ambitions, along with getting back in the thoughts of Gareth Southgate.
As being classed as homegrown, Jack slips into the squad without causing a dilemma for overseas player places