I thought that he had played in that position before.Since when has Bernabe been a left back??
Whether or which, Stones should not have come on. We need to keep all centre halves available for the United match and the Xmas period.
Fernandinho could have moved back and we could have brought on a midfielder.
Laporte Ake and Stones are either coming back from injuries or regaining form.
A couple of recurrences of injuries or loss of form and we are in big trouble.