Roma lost on penalties in Budapest with Mourinho stating Taylor "seemed Spanish" in his post-match presser.
Later inside the stadium carpark, Mourinho confronted Taylor.
"F***ing disgrace man, it's a f***ing disgrace," Mourinho fumed, before switching to swear at the official in Italian. "F*** off," he continued.
Mourinho then approached the mini-bus taking the referee away and also scoffed: "Congratulations, you f***ing disgrace".
Watch below (warning: contains industrial language):
L’allenatore della Roma urla tutta la sua rabbia in faccia all’arbitro Taylor Mentre Rosetti, designatore UEFA, cerca di calmarlo
@GianluVisco#ASRoma#Mourinho#EuropaLeagueFinal#Sportitaliapic.twitter.com/3TxOZAEol0 — Sportitalia (@tvdellosport) May 31, 2023