Bayern Munich will sign Luis Diaz, strengthening their club.
Meanwhile, their rivals, both Leverkusen and Leipzig, have lost their main players in very strategic positions. And now, Benjamin Sesko is close to leaving the club, currently a target for Manchester United and Newcastle. Newcastle has even agreed to the requested fee, but Manchester United has also submitted a bid. So, Sesko is deciding where his future lies.
Objectively speaking, Bayer and Leipzig are not competitors of Bayern, they are competitors only with each other. Newcastle is spending money that they will obviously receive for Isak, judging by the news, the transfer has already been agreed upon by 99%, which means this transfer will also take place. I don't see any options why a player can now choose United (which does not participate in European Cups at all) and not Newcastle (which participates in the Champions League).
The latest news tells as that Newcastle united are more progressive and are close to sign Benjamin sesko, having put a €72-74M bidding and are making advancement with RB Leipzig and are looking like favourites to sign him now. In the meantime Manchester United still want to sign him, Fabrizio Romano had spoken about it saying that they have had meetings and spoken to the camp face to face but Manchester United financial problems and their other choices like Watkins may halt them from the transfer. And also sesko liking and Newcastle eagerness will make united stealing the transfer unlikely.