Oh, why post a tweet from over a year ago though
With regards to the journalists, Andy Brassel is certainly reliable but can't say the same of Januzs (from his days at ESPN FC). But anyways I'm not saying Konate isn't a great prospect but for me both are equal in terms of talent. I don't agree that Upamecano makes many mistakes, ocaasionally he does but he's still only just turned 22 and the upside in his potential is too much to ignore for me. Let's also not ignore that majority of the building up responsibility from the back is on Upamecano and therefore that also leads to some errors, which he can iron out with time.
The 18/19 season certainly was when Konate really showed his potential (I remember him being poor in his first season, playing in the EL mostly and I wasn't impressed then), but we have to remember it was under Ralf Rangnick and overall RB looked better under him than Hassenhutl's previous season. Upamecano also played part of that season before his injury.
He reminds me of Boateng at the same age, he too was making the occasional mistake for Hamburg but the talent was clear to see. I fear we're making the same mistake, unless we are planning for Konate, and Upamecano will go to Bayern and become a great CB for cheap.