Fiorentina have agreed deals for Lecce's Ruben Olivera, Lanus midfielder Guido Pizarro and Ajax's Mounir El Hamdaoui.
Uruguay international midfielder Olivera is set to sign a two-and-a-half year deal with the Florence outfit after a fee of around £1million was agreed.
21-year-old Pizarro arrives from Argentine outfit Lanus, with the deal worth around £3million.
Lanus confirmed their midfielder had made the move, announcing: "Now we can say that Guido Pizarro is a Fiorentina player, as the negotiations have been successful."
And Ajax's El Hamdaoui is set to finalise his move after watching their weekend win over Siena.
The 27-year-old Morocco international has been linked with a host of clubs in Spain and England in recent weeks, but now he is set to seal a switch to Fiorentina.
In what has been a busy few days, Fiorentina are also said to be in talks with Copenhagen over highly-rated young striker Kenneth Zohore.