I watched it, he played well. But there was one point when he had to run back from a corner, it was proper embarrassing. He looked like he was on a different speed film to the rest.
He's got lots of positive attributes. He's a unit and gets stuck in, had decent timing on tackles, and uses the ball well. But he is slow. I dont know what Farke or Bielsa thought but they didnt fancy him for something. I just guessed it was his lack of pace.
In my opinion I still think he's too slow for prem, particualrly for a team playing high up the pitch. He might be ok in a 3 with a low block team or set up.
Id be happy if I was proved wrong. Im an open minded person.