He lost his form last year after AO and struggled for 3 tournaments before regaining it in Madrid. It's not like he played well in MC and still lost against a counterpunching Medvedev. In Cincy, he played well and still lost which is the difference.Djokovic wasn't at his best in their MC match, but he wasn't terrible. They were playing 30+ shot rallies during 2 hours, just like in their AO match. Terrible is what Nadal was in MC semifinal, when he was missing like every third shot.