Defenders Juan Manuel Vargas and Gianluca Comotto have been unveiled as Fiorentina's two latest signings.
Vargas, 24, has signed a five-year deal, which will earn him around €1million (£800,000) a season, while 29-year-old Comotto joins on a three-year contract.
The €12million (£9.5million) transfer from Catania will mean Vargas will have to be struck off the transfer target list of a host of European clubs, reportedly including the likes of Manchester United and Real Madrid, after an impressive season in Serie A.
"I'm happy to arrive here in such an important side like Fiorentina. I can grow a lot here and I want to do this with this side," said Vargas.
For Comotto, he is no stranger to Viola after once having a six-month loan spell with the Italian giants.
However, the former Torino defender struggled to make an impact and is desperate to restore the faith of the Andrea Della Valle supporters.
Comotto said: "I had been here before for six months during an unhappy period of my career.
"Now I want to show Fiorentina supporters who is the real Comotto."