He's not played a single game in midfield since the Copa America, how on earth have you come to the conclusion that he'd still be capable of running around the pitch now - let alone next season? Was picking up injuries left right and centre at the back end of last season.Is Fernandinho coming to the end of his career though?
He still looks like one of the best and fittest players on the pitch to me, and looks like he'll be our best option in CM next season too.
Some player can still perform at 35 and 36 and Fernandinho is definitely one of them.
If he gets a contract extension it will be as 4th choice centre back. The idea that he's some superhuman who can run from box to box for 90 minutes multiple times a week is absurd.