#8 Angel Di Maria (Paris Saint-Germain)
Market Value at the start of 2017: €55m
Current Market Value: €40m
When Angel Di Maria left behind the nightmare that was his season at Manchester United, things were looking up for the Argentine winger. After scoring just 4 goals at Old Trafford, he was back on the score sheet regularly with 29 goals in his first two seasons.
His stock rose again and he was coveted by a couple of clubs even though he was quite happy to play in Paris. Then came the bombshell from PSG when they signed both Neymar and Kylian Mbappe - players who play in Di Maria's position.
Suddenly, the 29-year-old became a bit-part player and he has only made 11 starts in the league this season with 3 goals and 4 assists.
However, he has made a great start to 2018, scoring 3 goals in as many appearances. But this may be just a temporary phase until the trio of Neymar-Cavani-Mbappe start together more regularly.