Whoever plays at left back will be boosted by having Dunk at left CB as will Bruno having Duffy back in his correct position as right CB. This will get the defence back to its best as per most of the season.
I would be happy for anyone of the 3 left backs that we have but would prefer it be Bong and would like to see LR on the bench as cover for either full back if needed or they are having a bad game