After an underwhelming third spell at Atletico Madrid, Diego Costa is back on the market as a free agent. One of football’s most divisive characters, the forward has been cherished for his goalscoring ability, as well as reviled for his antics on the pitch. The Spaniard was once one of the most feared strikers in the world, hitting the 20-goal mark on two occasions as he won two Premier League titles at Chelsea. However, his best days seem far behind him, scoring just 12 league goals in 61 appearances since returning to Atletico Madrid. Furthermore, the 32-year-old comes with a lot of baggage. His salary was an estimated €300k per week, he has a concerning injury record, and has missed several games in his career through suspension. But, if he can get back to his best, then he should ...