Not his biggest fan, but he has been playing well, so even though it was an awful error, I would maybe grant him a pass, considering it didnt cost us points in the end.
Going forward, I think a left footed centre back on that side would make playing out alot easier, if we are to stick with a back 3. Just a pity all of the ones we have coming through are right footed, although Ampadu and Guehi have done well as left sided in a back 3 this season but Sheffield United dont play out under pressure that much often, and its obviously a big step up for Guehi.