How can he be sent off for denying a clear goal scoring opportunity when Atsu put the rebound in? Deliberate handball is a yellow card offence so he should have been booked. He didn't deserve a red because Newcastle scored. I kind of get where you're coming from but I disagree with the law changing.I still need a lot of convincing that Alexander-Arnold doesn't deserve a red card for his handball.
In his actions he didn't choose that the ball would fall to Atsu, all he did was choose to block the initial chance.
Edit: I'm happy to accept, if someone can confirm it to me, that that's how the law works. If that's the case, I'm saying the law's ridiculous and needs changing