The Brazilian has been in Italy finalising the switch to the Serie A side after only making three starts this term for the Reds.
"He is going out on loan to Fiorentina," stated the boss in Friday's press conference. "We've not been able to get him as many games as he'd hoped, or we hoped we might get him, so we feel it's a good opportunity for him.
"He's going to a good club in a good league so, hopefully, it will benefit him."
The 25-year-old arrived from Porto in 2007 and has made 104 Barclays Premier League appearances, including 70 starts.