The spending spree at Anfield has been relentless and impressive so far under manager Kenny Dalglish with Andy Carroll and Luis Suarez arriving in January and the midfield options greatly increased this summer thanks to the new signings of Charlie Adam, Stewart Downing and Jordan Henderson.
One area of the team that has yet to see any significant improvement yet however is Liverpool's defensive back four. Whilst possessing some quality at the back in the likes of Daniel Agger, Martin Kelly, Jamie Carragher and Glen Johnson, Liverpool often find themselves lacking in defensive options.
With Carragher showing his age more and more each season, the defensive ineptitude of right-back Glen Johnson and the frailty of Daniel Agger has seen the team come up short with alternatives several times.
Then of course we have the left-back problem that is still unresolved and last season saw Paul Konchesky, John Flanagan and even Glen Johnson all playing their to varying degrees of success. However with problematic Konchesky sold to Leicester, Johnson a natural right-back and Flanagan still developing, perhaps the Reds should start to look to bolster their back four options to greatly improve their chances for the upcoming new Premier League Season.
After all, the greatest teams are all built from the back upwards. So here are five players from around the world that can all bring something to Liverpool's defence.