Roma were unable to go beyond a 1-1 draw at Do Dragao against Porto, in a match undoubtedly marked by dubious refereeing decisions.
During the first leg of the Europa League playoffs, in fact, referee Stieler wanted to be the protagonist of the show.
Seven cards were waved by the German referee at the Giallorossi players (one red and six yellows): a scenario that, as OptaPaolo reports, has not happened since 2007.
Back then, eight yellow cards were shown in the Champions League fixture with Lyon.
