Would people who watch him regularly say that he's better than Yaya defensively?
A scarecrow is better than yaya defensively.
He offers silva esque quality in the CM role albeit a little more combative, but also plays CAM and LM.
He's perfect for city in reality, also importantly with sterling able to play RM/RW(i actually rate him better on the right), i see this as curtains for navas.