Newcastle United and Tottenham Hotspur are interested in Borussia Dortmund scout Sebastian Krug, talkSPORT understands.Krug, who is seen as playing a key role in Dortmund signing Erling Haaland and Jude Bellingham, is wanted by a other European clubs.Haaland and Bellingham proved to be two of Dortmund’s best ever signingsGettyThe 43-year-old was appointed as Dortmund’s chief scout in 2022 and has worked exclusively with the German giants.Other names that he has scouted and played roles in signing include Jadon Sancho and Jamie Gittens as well.More recently, he managed to prise Jobe Bellingham away from Sunderland ahead of numerous Premier League sides to continue the Bellingham affiliation with Dortmund. He identified both of the Bellingham brothers early on and focused on establishing a good connection with the family.As a result, he is thought to be someone they trust, and this along with several other high-profile purchases has made him of interest.Newcastle and Spurs are looking to revamp their recruitment models, and the feeling with Krug is he’s reached the end of his time of Dortmund after ten years of service.Krug’s buys at DortmundIn the time that Krug has been at Dortmund, the club have made some seriously impressive transfers.Since becoming chief scout alone, Karim Adeyemi, Nico Schlotterbeck and Julian Ryerson arrived in his first year.Felix Nmecha and Serhou Guirassy have also come through the door, while huge sales for Jude, Haaland, Gittens and Donyell Malen have gone through.Gittens was another one who Krug extensively researchedGettyHaaland and Bellingham were sold for a combined fee of over £150millionGettyNewcastle restructureEddie Howe has left St James’ Park, and Matthias Jaissle is in.The Magpies have Howe’s cousin Andy in a prominent recruitment role, along with sporting director Ross Wilson.Wilson has overseen the majority of the business this summer, with Newcastle shifting focus away from domestic recruits to young, European talent.The oldest player they’ve signed this summer is new goalkeeper Lukas Hornicek from Braga, and he is only 24,Long-serving chief scout Steve Nickson is also set to leave once the transfer window closes.He was responsible for scouting and helping sign some of Newcastle’s best players in recent years, including Joelinton, Allan Saint-Maximin, Alexander Isak and Sven Botman.However, he is set to take on a new role as director of football for Wrexham, meaning Newcastle will need a new chief scout.Isak is one of Nickson’s recruits, but Newcastle will need a new man to lead that departmentAFPJaissle’s requirementNew Toon boss Jaissle has promised ‘adjustments’ to the squad between now and the end of the transfer window.Speaking at his first press conference at St James’ Park, the German made it clear that he is positive about more players arriving on Tyneside before the Toon face Liverpool in their opening match on August 23.He said: “We are totally aware internally which positions we might need to strengthen the squad. “But this is nothing for here, for the press conference. We believe in the players that we have now. And we had a chat after the match in Valencia where you were really happy that the young lads getting the chance, so that’s also the approach from this club. “Every minute they’re getting, then they can grow.“Like I said in my first statement, there will be adjustments in the squad. We still have time.”