Sandro is staying and Spinazzola is coming, no doubt about it. Spina will play RB. Some games him on the right other games De Sciglio.
Both can play left if Sandro is injured. Spinazzola will be great. I wonder if many of you have seen a good number of Atalanta games.
He defends and attack just like Sandro but is better defensive , while Sandro is better offensive. For me the ideal RB for us> He is a better overall player than Cancelo.