#3 Stevan Jovetic

The Montenegran striker was highly rated by his previous club- Fiorentina and it is understandable that City decided to go after the then 24 year old in 2013.
City believed that they had invested the 26.7 million well but Jovetic only made an impact sporadically both in terms of creativity and in his goal count. Though only 25, Jovetic fell down the pecking order at City and injuries worsened his chances of making the cut at Manchester City.
In 2015, Bony was signed from Swansea and Jovetic was left out of the Champions League squad for the knockout stages of the tournament which greatly angered Jovetic.
He left on loan to Inter and then signed permanently for them in 2016. Scoring only 11 goals for City in all competitions, safe enough to say that the striker did not have a great couple of years in Manchester.
Despite all this, Jovetic's overall impact could be forgiven had City spent less for him but at nearly 27 million, he is once again a costly mistake.