Having joined Zenit St. Petersburg this summer, Malcom's tenure as a Barcelona player lasted just the one season. Ouch.
Signed from Bordeaux for a reported £36m, the 22-year-old was deemed to have much promise, having scored 12 goals and assisted a further seven in 32 starts in Ligue 1, all from a wide position.
However, the Brazilian failed to make an impact in Spain, scoring just once for the club before being shipped off to Russia.
Inspired by the move - as well as Philippe Coutinho's potential departure, albeit a loan - here's a list of seven expensive signings who flopped and were swiftly moved on elsewhere.