Today's match is the second game of 2016 and officially the end of the first half of the season. So there's two good motives as to why the match is super important, not to mention the fact that the visitors are hungry for blood (don't worry, Fiorentina aren't playing a pack of vampires, Lazio just haven't been in the best form this season.)
Big shock as Sousa has left Josip Ilicic OUT of the starting lineup, following his brace midweek against Palermo, with the recently renewed Matias Fernandez coming in at his place.
Jakub Blaszczykowski additionally makes his long awaited return as a starter after a lengthy injury spell.
Stefano Pioli, meanwhile, has also made the choice to leave out one of his key players, Felipe Anderson, who is currently going through a rough patch of form.
Eyes will be on Lazio's Sergej Milinkovic-Savic for this one, who some may remember to have snubbed Fiorentina in the summer, in what can be considered as a dramatic turn of events. All smiles and waves will likely be directed towards him this evening.
Fiorentina: Tatarusanu; Roncaglia, Gonzalo, Astori; Blaszczykowski, Vecino, Alonso; Fernandez, Borja Valero; Kalinic
Lazio: Berisha; Konko, Mauricio, Hoedt, Radu, Milinkovic-Savic, Biglia, Parolo; Candreva, Djordjevic, Keita
How to watch
TV: If you've got access to RAI and BeIn Sports then you'll be able to watch it there.
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