Whatever happened between Rafa, Lascelles, Shelvey, Ritchie, doubt there will be any long-term negative effects.
Rather the players hold self-responsibility than the meek cowards we had during our relegation season.
Anyway, doubt Lascelles is going to fall out with Rafa over one incident. He will realise that the manager takes responsibility for the tactics and result. Rafa is ruthless but he has the right to impose his say as gafter.
Of course.
"Shelvey has been playing with pain for a couple of games and Lascelles has an ankle problem"
There's no way to absolutely know which story is true but Rafa is hardly going to hang his captain and best player out to dry in public after one episode.