Fiorentina conceded a late goal, had David Pizarro sent off and lost their 100 percent Serie A record in a 1-1 draw at home to Cagliari on Sunday, with an injury to Mario Gomez compounding their frustration.
Fiorentina said in a statement that Edoardo Bove was under sedation at the Careggi University Hospital in Florence having lost consciousness during the match.
Real Madrid squeezed past Atletico in a pulsating Madrid derby while Inter were held, keeping Serie A title race alive.
Barcelona joined Real Madrid, Atletico and Real Sociedad in the semi-finals, with the draw set to take place on Wednesday.
Giuseppe Rossi continued his remarkable comeback with a 15-minute hat-trick as Fiorentina recovered from two goals down to defeat previously unbeaten title-holders Juventus 4-2 in Serie A on Sunday.
Inter Milan went on a rare scoring spree to thrash Serie A newcomers Frosinone 4-0 and go clear at the top on Sunday, the first time Roberto Mancini's team have won a league match by more than one goal this season.
Barcelona's Ferran Torres scored twice to help secure a late 4-2 comeback win at Atletico Madrid in a pulsating LaLiga clash on Sunday.
Inter Milan's Rodrigo Palacio and Mauro Icardi struck in a 2-1 win at Fiorentina on Saturday to secure their struggling side's first away victory in Serie A since early November.
Holders Sevilla swept into a second consecutive Europa League final.
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field.
Leicester City's Kelechi Iheanacho scored two poacher's goals as they beat Manchester United 3-1 in their FA Cup quarter-final on Sunday to set up a last-four clash against Southampton.
Brazil midfielder Casemiro stretched Real's advantage right before halftime with a gut-busting run to meet a cross from compatriot Vinicius, but Levante hit back shortly after the interval through former Madrid forward Borja Mayoral.
Serie A witnessed some breath-taking football action, especially when AC Milan could not convert the umpteen chances they had against Sassuolo while Inter went to top. In Ligue 1 action, all the star players found the net for PSG. Here are images from the soccer matches played across Europe on Sunday.
