When it was announced Jurgen Klopp would take the reigns at Liverpool, many supporters licked their lips at the potential recruits he could bring to Anfield.
During his seven-year stint in charge at Borussia Dortmund, the German formed one of the best teams in Europe who won back-to-back Bundesliga titles in 2011 and 2012, as well as reaching the Champions League final one year later.
Shortly after he was appointed manager of the Reds, Klopp insisted he would not raid his former side.
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"That's not my intention at all," he told German newspaper Bild.
However, with the January transfer window looming, there are a few of the 48-year-old's former players who could add some much-needed strength in depth at Liverpool.
A significant problem for Liverpool over the past few years has been conceding goals.
Simon Mignolet is still not fully convincing between the sticks, and despite Klopp giving his full backing to the Belgium international, competition is vital to get the best out of 'keepers.
His latest error came when keeping hold of the ball for too long in his side's Europa League victory against Bordeaux two weeks ago, with the Ligue 1 outfit scoring from the indirect free-kick.
Mignolet's biggest problem is that he's far too comfortable and isn't pushed to do better. Adam Bogdan, Liverpool's number two, falls short of what is required for a club with Champions League ambitions, likewise Brad Jones previously.
To force the former Sunderland man to perform at his best consistently, signing a veteran who has been there, done that, could be the answer.
At 35-years-old, Weidenfeller may not be a spring chicken anymore, but his experience could prove invaluable.
The Diez-born goalkeeper was Klopp's number one when Dortmund romped to consecutive German title success, with his best form coming in 2008.
Weidenfeller has now firmly fallen out of favour at Dortmund, though, with Roman Burki now occupying the number one spot, presenting an ideal time for Klopp to add such experience to his ranks.
If you asked Kopites what position has been the least stable at Liverpool over the past decade, the large majority would answer left-back.
The likes of John Arne Riise, Fabio Aurelio and Jose Enrique did not fully convince and Alberto Moreno is similarly not cutting the mustard.
The Spaniard is excellent on the attack, but his defensive frailties have been exposed on several occasions.
If the Reds have genuine top-four hopes this term, they cannot afford to carry any baggage.
Schmelzer has been a regular for BVB this campaign, likewise for the majority of seasons since he made his debut for the club in 2008.
That chance was given to the 27-year-old by Klopp and the pair instantly formed a positive rapport.
If Liverpool fans could hand-pick just one player from Dortmund, the large majority of them would choose Reus.
Supporters have dared to dream about the Germany international moving to Anfield for some time. He’s been linked on several occasions and even club owner John W. Henry tweeted he wanted to sign the attacking midfielder.
Klopp’s golden era at Dortmund was when he had his three-pronged attack of Mario Gotze, Robert Lewandowski and Reus. The trio never failed to amaze and were, quite simply, magnificent together.
Their quality shocked Real Madrid in the first leg semi-final of the Champions League in 2013 when BVB romped to a 4-1 victory and were incredibly unlucky not to beat Bayern Munich in the final.
Gotze and Lewandowski could not resist the glittering lights of the Allianz Arena like so many others, but Reus has remained loyal to the team he joined in 2012. It was Klopp who lured the 26-year-old from Borussia Monchengladbach and the pair complemented one another’s styles.
The Dortmund-born playmaker immediately adopted his manager’s gegenpressing style and was not afraid to get his hands dirty. No longer was he the sole star man like he had been at Monchengladbach, but that did not bother Reus and he played for the good of the team.
Likewise, Klopp gave Reus a license to thrill and roam when his side were in possession. Although deployed out on the left, he was not restricted out wide and often wandered into dangerous positions.
The Reds’ options where Reus plays are already saturated with Philippe Coutinho, Roberto Firmino and Adam Lallana, as well as youngster Joao Teixeira.
However, none of the above were signed by Klopp and he’ll be desperate to reunite with a familiar face. Reus is a world-class player and, given the quality Liverpool have purchased in recent years, he would be a statement of intent towards their rivals.
The prospect of Coutinho and Reus playing the roles of Liverpool’s protagonists is a frightening thought, too.