I saw a comment online (not here on Lemmy) where someone was saying that Kiwior should be rested against Southampton, so he doesn't get injured and tank his values for being sold this summer.
First off, I'd be very happy if he stayed. He's really proved himself as a very solid backup/rotation centreback, and I get the feeling his could easily raise his ceiling further.
Second, who the hell is going to fill in for him this weekend?! Tomiyasu and Timber are injured. Calafiori only just came back from an injury (and was wearing a knee brace right after the Newcastle match), White only just came back from injury (and we need him at right back), and Saliba came off because of a suspected injury.
I know Rice has played at centreback in the fairly distant past. But putting him in there now would be idiotic. Playing Partey at right back and moving White to Central for that one match would be equally idiotic, if for nothing else than considering we are also light in central midfield.
Just play Kiwior.