With many clubs across the world having been punished for doing shady deals, here are eight transfers that were alleged to have been made illegally, including one that led to a FIFA ban for Kaizer Chiefs.
Click through the gallery above to see eight transfers that were reportedly made illegally, according to various reports.
In 2014, Barcelona were found guilty by world football governing body FIFA for breaching transfer and registration rules regarding the signing of players under the age of 18.
Among them was Japan wonderkid Takefusa Kubo, who joined the Spanish giants from Kawasaki Frontale Youth in 2011. The Blaugrana were subsequently handed a transfer ban for two windows, with the club astonishingly announcing 77 signings once the FIFA-imposed embargo was lifted.
Click through the gallery below to see nine clubs that received relegation as punishment!
Chelsea were handed a ban from FIFA in 2009 after the arrival of French wonderkid Gael Kakuta, whom they reportedly convinced to terminate his contract with Lens so the winger could join the Blues on a free transfer.
The Premier League side is said to have escaped further punishment after agreeing to pay Lens a compensation fee.
In early 2020, Chiefs learnt their fate after FIFA found the Soweto giants guilty of illegally buying Madagascar international midfielder Andriamirado "Dax" Andrianarimanana from Fosa Juniors.
While Amakhosi were slapped with a transfer ban from the sport's governing body, the player himself was banned from playing for four months. Click through the gallery above to see some more alleged illegal transfer deals!