Daniel De Rossi was on international duty with Italy in the summer of 2013 when Roma announced Rudi Garcia as their new coach. The midfielder wasn't just surprised; he was mystified. He'd never heard of Garcia.
So, he performed a cursory Google search and promptly discovered a video of his new boss playing guitar and singing 'Porompompero'.
He turned to Italy team-mate Andrea Pirlo and said, "Sh*t, look who they've got..."
"At the time, they were talking about (Massimo) Allegri," De Rossi recalled in an interview with So Foot, "and, honestly, I had some doubts."
It's fair to say that Napoli fans are experiencing similar sensations this morning, after the club confirmed on Thursday evening that Garcia has been appointed as Luciano Spalletti's successor at the Stadio Diego Armando Maradona.
The situation is slightly different, of course. Unlike De Rossi, the supporters are familiar with Garcia - but that's actually the primary reason for their current state of shock.