The debate about whether the tackle was needed is neither here nor there.
I’m don’t believe it was careless. He turned, Lamptey took the ball and changed the direction of it. That’s not careless.
When you try to simply the rule without the context, all you do is open every challenge up to being a free kick or penalty. That’s the beauty of football - not every trip is a foul.
You have to be careless, reckless or use excessive force.
I’d argue he does none of that. And in tripping him...