Fiorentina will take a slender lead into the other semi-final as M'Bala Nzola's stoppage time strike earned a 3-2 win over 10-man Club Brugge.

Last season's finalists went ahead early on in spectacular style through Riccardo Sottil's curling effort.

Hans Vanaken quickly levelled for Brugge from the penalty spot but Fiorentina were back in front before half-time through Andrea Belotti.

Two quickfire yellow cards for Raphael Onyedika on the hour  gave the Belgians a tough task just to keep the tie alive.

However, the 10 men equalised once more when Brentford-bound striker Igor Thiago fired into the far corner.

The visitors' resistence was finally broken when M'Bala swept home after his first shot came back off the post, but Brugge still have all to play for with home advantage on May 8.