Yes Loca is suspended. Mckennie is the only alternative to Rabiot, and he's just back from the US. His flight got delayed.
The other option would be a different set-up (4-2-31)
Juventus (4-2-3-1): Szczęsny; Danilo, De Ligt, Chiellini, De Sciglio; Arthur, Zakaria; Cuadrado, Dybala, Morata...