In the 2009–10 season, Fiorentina started their domestic campaign strongly before steadily losing momentum and slipped to mid-table positions at the latter half of the season. In Europe, the team proved to be a surprise dark horse: after losing their first away fixture against Lyon, they staged a comeback with a five-match streak by winning all their remaining matches (including defeating Liverpool home and away). The "Viola" qualified as group champions, but eventually succumbed to Bayern Munich due to the away goals rule. This was controversial due to a mistaken refereeing decision by Tom Henning Øvrebø, who allowed a clearly offside goal for Bayern in the first leg. Bayern eventually finished the tournament as runners-up, making a deep run all the way to the final. The incident called into attention the possible implementation of video replays in football. Despite a good European run and reaching the semi-finals in the Coppa Italia, Fiorentina failed to qualify for Europe.