Top 10 most expensive Chelsea signings of all time

#7 Diego Costa

Costa had a fruitful spell at Chelsea

The Spanish international was booed heavily by the Stamford Bridge faithful after his goal knocked Chelsea out of the Champions League in 2014 but was able to turn things around as he signed for the club in the summer of the same year.

Costa arrived in London for a fee of £32 million and quickly adjusted at his new club - guiding Chelsea to a Premier League title in his first season.

Costa made 89 league appearances for Chelsea scoring 52 goals and providing 16 assists during his three-year stay at the Bridge.

The Spaniard went on to win another title with the Blues before being told by manager Antonio Conte that his services were no longer required at Chelsea and he was sold back to Atletico Madrid in the summer of 2017.