Cengiz Under feels refereeing decisions robbed Roma of a place in the Champions League final.
Liverpool take on reigning champions Real Madrid in Kiev on Saturday after coming through a remarkable semi-final against the Serie A side that finished 7-6 on aggregate.
Jurgen Klopp's men prevailed 5-2 at Anfield, having raced into a 5-0 lead, while a pair of late goals gave Roma a 4-2 win at the Stadio Olimpico in an eventful return fixture.
Roma sporting director Monchi called for VAR to be introduced in Champions League matches in the aftermath of a second leg where his club had two penalty claims dismissed, while president James Pallotta labelled the officiating "embarrassing" and "an absolute joke" - words that landed him with a UEFA charge.