Fernandes, who left Lisbon a couple of months before our new head coach joined them from Braga, has been a keen observer of his former club from afar.
The Lions had not won a Portuguese championship since 2002, before Amorim guided them to titles in 2021 and 2024.
He departed the Estadio Jose Alvalade with Sporting clear at the top of the Primeira Liga, having won all 11 of their games, and in a good position to advance further in the Champions League.
Bruno believes the fond farewell he experienced after the recent victory over Manchester City – his final home match in charge - showed how much of an impact Amorim has made.