Jurgen Klopp established his reputation as one of Europe’s best coaches during his successful seven-year spell with Borussia Dortmund.
The German coach, who replaced Brendan Rodgers as Liverpool manager in October, walked away from Signal Iduna Park last summer having won two Bundesliga titles, two German Supercups and the German Cup. He also helped Dortmund reach the 2013 Champions League final.
Klopp signed the likes of Robert Lewandowski, Mats Hummels, Ilkay Gundogan and Neven Subotic for relatively cheap prices and turned them all into household names.
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But Klopp made sure the players he signed not only possessed the required skills but also the required personality and attitude for his team.
Dortmund’s marketing director, Carsten Cramer, has told the Mirror of an interesting story of Klopp rejecting the chance to sign a striker because of the way he celebrated a goal.
"There is a story Jurgen told me about a striker he was interested in," Cramer told MirrorFootball. "He watched him in several videos and said: 'This is a striker I want to sign.'
"Then he saw him playing and he scored a goal. He was watching how he was celebrating his goal and said: 'This is not a guy for Dortmund. He is celebrating for himself and not the club.'
"All the players know the club is the most important thing. I'm very sure that the brand philosophy was important when we hired someone like Jurgen Klopp.
Perhaps Daniel Sturridge should change his celebration...
This could be bad news for Daniel Sturridge, whose celebration is very individualistic.
Perhaps the England international, an unused substitute in the 2-1 win over Crystal Palace on Sunday, will need to adopt a new celebration in order to win over his current boss.
It's been a good week for Klopp at Anfield
Klopp has experienced mixed success during his first five months at Anfield, but it’s been a good week for the Liverpool manager.
Last weekend’s defeat to Manchester City in the Capital One Cup final on penalties was obviously a blow, although Klopp’s men performed well at Wembley and were a little unfortunate to lose.
Liverpool exacted their revenge with a convincing 3-0 win over City at Anfield in the Premier League last Wednesday and followed that result up with their last-gasp victory at Selhurst Park.
The Reds now find themselves seventh in the Premier League table, six points behind fourth-placed Manchester City and still in with an outside chance of securing Champions League football for next season.
Next up: Manchester United
Every Liverpool supporter is firmly behind Klopp, but their love for their current manager will grow tenfold if he can guide them through to the Europa League quarter-finals at the expense of fierce rivals Manchester United.
The two clubs go head-to-head in the Europa League last-16 first leg at Anfield on Thursday night.
Will Liverpool beat Manchester United over two legs in the Europa League? Have your say by leaving a comment below.