Scotland manager and former Liverpool coach Steve Clarke has said he told Kieran Tierney that he was a better left-back than Andrew Robertson in order to trigger a positional shift.
The Liverpool and Arsenal duo provide excellent depth for Clarke on the left flank, although previously finding a way of getting both players into the first XI proved problematic.
After using Tierney as a right-back and then playing him as a left winger, Clarke eventually found a system that seemingly suited both him and Robertson, with the Gunners star playing as a centre-back.