Fiorentina president Andrea Della Valle is optimistic the club will agree a deal to keep Chelsea winger Mohamed Salah at the club for another season.
Salah, 22, initially joined La Viola on a six-month loan deal, but the club have the option of extending that for the duration of the 2015-16 season. Fiorentina can then make the move permanent for an agreed fee next summer.
His excellent start to life in Serie A has however attracted the interest of Inter Milan and Juventus, prompting Fiorentina to make the player an "insane offer", as sporting director Daniele Prade revealed to Gazzetta dello Sport last week.
It would appear La Viola are now a step closer to securing Salah for another season with Della Valle telling reporters: "We are trying to keep him, this is the decisive day," Gazzetta dello Sport also reported.
"Personally, I am optimistic about the negotiations succeeding. We will understand everything this evening."
Salah left Stamford Bridge during the January transfer window just a year on from his own arrival as part of the deal that saw Juan Cuadrado arrive in west London.
He made just three substitute appearances in the Premier League for Chelsea in the first half of the 2014-15 season but shone following his move to Serie A.
The 22-year-old struck six goals in 16 league appearances, providing three assists, and helped to the club to the semi-final of the Coppa Italia where they lost to eventual winners Juventus.
The Serie A champions are reportedly among those interested in the Egypt international but Fiorentina are confident their offer is good enough to convince him to stay.
"If any player, not just Salah, turned down a proposal like that, then it's best he doesn't stay at Fiorentina. However, I think Salah will accept. He made a huge impact with us, so it's normal that he should receive calls from elsewhere. He wants to earn more, but Fiorentina made a truly important proposal."