He's been one of our best players this season, had a pretty severe drop in form after Christmas but apart from that, his form has been mostly good.
He has however really struggled to function in a midfield two with Pogba, but I don't really blame Matic for that, Pogba has never worked well in a midfield two, and we should have been playing a midfield 3 of Pogba Matic and Herrera whenever feasible.
Definitely, need to buy him some competition this summer though, if he goes down the only really proper defensive midfielder we have on our books is Blind, and he hasn't played there since that eveton game a few years back.