The 19-year-old Englishman has been the subject of long-term interest from many a European club, but no side is linked stronger than Jurgen Klopp’s.
The Dortmund man has commanded the interest of the Reds since his arrival in Germany, settling in seamlessly to become a regular member of the first team at Signal Iduna Park.
He has already made 134 senior appearances, with 90 of those at the top level with Dortmund.
“They’ll (Dortmund) put everything in it to keep Jude Bellingham, he’s an incredible player,” said Koehler.
“Whoever is joining now in Dortmund they say “what a player that Jude Bellingham, this guy is so young and so good.”
“They will battle, they’ll go all in. They’ll put it all in to keep Jude Bellingham.”
It is no secret that Jurgen Klopp and his staff are distant admirers of Bellingham, too, with the German speaking about the midfielder before the Reds jetted off in pre-season – a rarity for managers of other clubs.
“He’s not on the market, so that’s the first problem with that player,” Klopp told members of the written press in a sit-down interview at Kirkby before the squad flew to Asia for pre-season.
“Well, that’s the only problem with that player!”
Bellingham has also been appointed third choice captain at Dortmund behind Marco Reus and Mats Hummels, meaning a level of seniority is being given to him before he even turns 20.
Although the links to Liverpool are almost constant, he is also thought very highly of by Real Madrid and Manchester United – who tried to sign him when he was leaving Birmingham.