I don't think Akanji was a problem and understand he has pace, i just think Dias is more solid defensively and more a leader back there and we needed that today.
The game was too fast for us and we just couldn't control the game.
As said, I think Bernardo had an off game and when Kev went off it boosted them, i would've kept him on for his presence alone.
We got better after Kovacic and Doku replaced Kevin and Alvarez. Kevin is not one to control a game.