The young Celtic left-back played as an attacker for most of his youth career but he has found himself re-learning the game as a full-back.
Calvin Miller was denied the chance to leave Scottish Premiership champions Celtic on loan during the January transfer window.
Brendan Rodgers decided to give Calvin Miller a chance in Celtic's starting line-up at the weekend.
With 46 games under his belt already this campaign for club and country, is the Celtic youngster in danger of burning out?
Celtic's centre-back issues are well documented, but what about either side of the heart of defence?
Celtic teenager Calvin Miller is a very talented and promising footballer.
Celtic do not need to resort to the transfer market to find a back-up left-back; they have a fantastic youngster crying out for a chance.
Celtic snapped up Jonny Hayes from Aberdeen this summer.
Celtic have three Scottish Premiership games remaining and it is about time Calvin Miller was handed his second first-team appearance under Brendan Rodgers.
It's time for Celtic manager Brendan Rodgers to give Calvin Miller another opportunity.