Falcao
The Colombian international had been smashing in the goals for the likes of Porto, Atletico Madrid and Monaco on the continent but his two spells in England with Manchester United and Chelsea were very disappointing.
A knee injury had preceded his time at Old Trafford and that can explain why he did struggle at United but, after seeing him toil with the Red Devils, it was a perplexing decision by Chelsea to give him another season in the Premier League.
