The avid supporter had a cartoon of the Argentine boss, 63, inked onto his forearm after he openly admitting to spying on opponents.
Bielsa was originally caught sending a member of staff to watch Derby's training session before his honest revelation.
The cartoon was originally published in the Yorkshire Post, with artist Graeme Bandeira tweeting about the incredible tattoo.
He wrote: "Ok then I just come out of the Boro match and have been sent this picture. A Leeds fan has only gone and got my Bielsa cartoon tattooed on his arm.
"I’m certainly leaving an impression on people!!!"
With fans calling for an investigation into Bielsa's tactics, he amazingly confessed to not only spying on Derby, but the whole league.
During an hour-long powerpoint presentation, Bielsa said: "I’m going to make it easier for the investigation of the league.
“I can tell you we observed all the rivals we played against and we watched all the training sessions of the opponents before we played against them.
“I didn’t have bad intentions and I didn’t try to get an unfair sports advantage.
“I did it because it was not illegal and not violating a specific norm.”
The former Argentina boss added: "We can discuss it, it's not seen as a good thing but it's not a violation of the law.
"I know that not everything that is legal is right to do."
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