Obviously he hasn't been tested at centre back m8 but Rodgers is on record as saying he sees his future in that position. It's not as though we (Scotland) are short of options at left back. It's something Strachan should consider for the upcoming double header imo.
Also, and I don't know if fellow tims on here would agree, but he seems to have grown physically in stature quite a bit over the last few months. ?