Here’s why Casemiro would be a very smart piece of business :
1. He’s elite, top level player who still has a few years of high athleticism plays in him
2. He’s press resistant for the most part and links up well with more advancing midfielders
3. Fred-Casemiro play very well together for Brazil. They know each other’s games inside out and this will be an additional option when you need pressing midfielders in front of the defence
4. He and Varane know each other very well and that helps transitioning out of defence too
5. Lastly, he is the closest thing to Keane since… Keane. We desperately need a destroyer and Casemiro is that with a nice touch.
Added plus: he remains largely injury free in most seasons.