Umtiti obviously needs much more time to regain his fitness regardless of whether his knee is completely fine or not. So we have to be patient in that sense but is it really worth it? He was certainly one of the best CBs before the injury but we now have Lenglet who is already good enough to replace him and Todibo seems to be a decent talent as well (better fit than players like Yerry Mina at least). There is also a good chance that we will sign De Ligt who will highly likely become a world class CB. I know this club will not sell him this summer but ideally it is better to let him go and make room for De Ligt and Todibo.
What do you mean by: "is he worth it"?
No matter what, we need two lcb's. And trying to get umtiti back to his former form is ofc worth it. 1) I consider him the better player/option (if he can put injuries behind him ) 2) we need a back up lcb anyway 3) IF we sell him we would earn more if we put effort to show and regain his quality.