Roma striker Pablo Daniel Osvaldo struck the only goal of the game.
"It's a bitter defeat, as we were fighting for a very important third place finish. I compliment the lads on an excellent performance and it's so disappointing because Fiorentina did not deserve to lose," said the Coach.
There were penalty appeals when Daniele De Rossi appeared to handle in the box, but the referee only awarded a corner.
"I don't talk about referees. De Rossi? He did move towards the ball... In any case, let's not get fossilised into one single incident. There are games with a certain story and this seemed like the photocopy of our Coppa Italia game.
"The team gave its all, but this is football. Tomorrow we begin all over again."