He was at one point the best striker in the world ahead of Ibra, Suarez and Lewandowski. Such a shame. The downfall started when he left Atletico. It's kinda weird that at Atletico he was the main man and Diego Costa was supporting role, now Diego Costa is the main guy at Chelsea and he can't play even as a supporting role.
Class is permanent. Falcao has always been a classy striker and that injury knocked him back for a few years but he is getting back to some good form.