#4 James Rodríguez (Real Madrid to Bayern Munich)
The World Cup star from 2014, had a breakout season on the world's biggest stage. Anyone who had seen Colombia's participation in Brazil had noticed the gifted James Rodríguez, who bagged 6 goals and helped out with 2 assists, scoring in each of the 5 games in which he featured for his national side.
Real Madrid went for the former AS Monaco man who cost them a whopping £67.5 million in transfer fees. The now 26-year-old, had a fine start to his career with the most decorated football club on the planet. He was involved in 26 goals in 29 appearances for the Los Blancos, half of those ending with his name on the score sheet.
The Colombian's form dipped over the two subsequent seasons and was surplus to requirements for Madrid's new manager, Zinedine Zidane. As a result of which, he was loaned out to Bayern Munich over two years for a fee of £11.7 million (plus wages), with the option to make the deal permanent for £31 million.
Rodriguez initially took some time settling in, but since has found his mojo and has been heavily involved in Bayern Munich's attacks this season, assisting 6 and scoring 4 in 16 matches in the league for the German side.
Come the summer of 2019, the team from Munich might have themselves the Colombian - whose form may be suspect, but his talent certainly isn't, for as little as £42 million in total. Peanuts in the current transfer market scenario.