Juventus host Fiorentina on Sunday 12 February on Serie A Matchday 22. It is a fixture that has seen many players wear both shirts.
One example can be seen in the photograph from 2013, which shows Paul Pogba going up against two opponents that would become teammates, Juan Cuadrado and Romulo.
JUAN CUADRADO
The most recent Juventus-Fiorentina clash in Turin was decided by a classic Juan Cuadrado move with practcally the last kick of the match.
It was nothing new for the Colombian to punish his former club - he had already scored in the first confrontation with the Viola as a Juve player, in 2015-16.
DUSAN VLAHOVIC
Dušan Vlahović has played three times at the Allianz Stadium. Stadium on the opposite side.
The photo refers to the match from season 2019/20, when the Serbian forward played for the last half hour. The following year Dušan scored with a trademark deft finish after a turn of pace that left defenders trailing.
FEDERICO CHIESA
Federico Chiesa and Juventus tied together by destiny. After all, Federico made his Serie A debut at the Allianz Stadium on 20 August 2016, aged 18 years and 10 months with the shirt of the Viola.
And launching him on football's big stage was a former Juventus player, at that time Fiorentina coach, Paulo Sousa.
ALESSANDRO MATRI
Alessandro Matri's celebration in the Juventus-Fiorentina match of season 2012/13, won 2-0 by the Lady thanks to goals from Mirko Vucinic and the player with the number 32 on his back.
Alessandro would then go on to play in Florence in the first part of 2014, before returning to Turin the following year.
AMAURI
A shot that demonstrates Amauri's acrobatic qualities. In season 2009/10 the Brazilian centre forward scored in the black and white stripes in Juventus-Fiorentina.
As a Viola player he play a key role in helping his former side by scoring the goal that defeated Milan on the day that proved to be the turning point of the 2011-12 campaign, allowing the Bianconeri to overtake the Milanese club at the top of the table, from which they never looked back.