Jose Mourinho has explained how Chris Smalling has gone from an area of weakness at Manchester United, to a pillar of strength for his Roma side.
The Special One is coming to the end of a typically tumultuous first season in charge of the Italians, a campaign which has been punctuated by post-match rants at referees, disillusioned players and as so often in his illustrious career - the chance of a trophy.
The Giallorossi are one game away from their first European triumph since 1961, when they face Feyenoord in the inaugural Europa Conference League final. Domestically, Roma are in a battle for a top-five finish and Smalling has played a key role in all of their successes.