Chiesa injury adds to Juventus F.C.
With a knee injury, the Italy international has been ruled out for the remainder of the season, throwing the Bianconeri's winter window preparations into chaos.
Three days later, it's still difficult to know what to make of Juventus' incredible 4-3 triumph over Roma, especially from the perspective of the visitors.
Of course, the Bianconeri are still buzzing. It was the kind of success that "gives you an adrenaline boost," as captain Giorgio Chiellini revealed on Tuesday.
Juve are now unbeaten in seven Serie A games and are only three points behind Atalanta in fifth position, despite the fact that the Bergamaschi have played one game fewer.
On the surface, the Old Lady appears to have fully recovered from a poor start to the season and is now well-positioned to reclaim a place in the Champions League.
Juventus have struggled for the majority of the season, scoring only 28 goals in 20 games heading into Sunday's meeting.
The entrance of Arthur and Alvaro Morata by Allegri unquestionably transformed the game, and he deserves praise for his double substitution.
Of course, his detractors – who are growing in number – would claim that the coach's conservatism is to blame for Juve's lack of output this season.
They now expect that Allegri will realise the advantages of playing Arthur in midfield alongside Manuel Locatelli and discard the shamefully antiquated 4-4-2 system.
The absence of Federico Chiesa, though, is more significant.