So now that Newcastle wants to snap up Benjamin Sesko, because it's been reported that Newcastle wants to close up the deal today with Leipzig concerning the signing of Sesko. The are looking for the replacement of Alexander Isak on time after he has told the club that he wants to leave. So with this news now, Manchester United will only be left with the option of Jackson since Newcastle won't be joking with getting Isak's replacement as soon as possible.
If this news is true Man United's chances of landing Sesko will be much slimmer, as Newcastle will certainly be looking to complete Sesko's signing as a replacement for Alexander Isak, who wants to leave. Newcastle have a chance to land Sesko because in addition to playing in the Champions League next season, Newcastle also have the financial capacity to afford the player.
It seems likely that Man United will again face a similar situation, as they previously expressed interest in Viktor Gyokeres, but ultimately failed to finalize negotiations, leading to the player joining a rival. There should now be other options if negotiations go well for Newcastle, as I'm confident the player will choose Newcastle.