Martin said: “The first thing he’s got to do is sort that defence out. He’s got to get more out of these [current] defenders, or he’s got to go out and buy. I believe he will have to go out and buy. If you got a Hummels in, somebody that is a top class centre-half, that would give them the springboard for the consistency that they’ve been lacking.”
It appears as if Klopp is set to take the Liverpool head coach’s job this week, and he has his work cut out this season with the Reds.
Liverpool’s playing squad is lacking the kind of quality that their Premier League rivals possess, and it will be a number of years for the German coach to rebuild the side into potential title challengers - an aim that is achievable with Klopp in charge.
Martin believes his first job must be sorting out the defence at Anfield, having seen Liverpool become a laughing stock for their defensive play under Brendan Rodgers.
Their inability to keep the ball out of their own net cost them the Premier League title in 2014, whilst it is impossible to name a Liverpool defender who would walk into any side in the top four.
With Klopp’s first aim to improve the back-line, the West Ham legend - born in Liverpool - believes the German boss should look towards the transfer market, with Mats Hummels the first signing to be brought to Merseyside.
Hummels was a central part of Klopp's successes with Borussia Dortmund, and as a German international and World Cup winner, is considered one of the best central defenders in Europe.
It may be hard to bring Hummels to Anfield, considering a number of sides would want him if the 26-year-old was made available to sign, but Klopp's influence could be enough for Hummels to come to Liverpool - and kickstart a new era of success for the club.