Both before and after the match, the Argentine reiterated that "the responsibility for this lies with me" and insisted nobody from Leeds had given him permission to "spy" on Derby's training session.
Leeds overcame Frank Lampard's outfit 2-0 at Elland Road, but it was the incident that happened at Derby's training ground that had the Rams boss raging.
"I have my view but what is important is what Lampard and Derby think". This is not illegal.
Lampard was critical of Bielsa's actions.
"On a sportsman's level it's bad in my opinion", the former Chelsea midfielder, whose side remained in the playoff places despite the defeat, told Sky Sports.
"So I think you look at all three of those games and you think, we can go away from home and play well and almost get a result against Chelsea and obviously win the other two games". It's disrupted our build-up to the game.
Leeds, who thrashed Derby 4-1 in the league meeting in August, have lost their last three games in all competitions and sit two points clear of Norwich at the top of the table. "Now Leeds can beat you 4-1 - they're a fantastic team - but we had someone in the bushes that day".
Mount, who is now on loan from Chelsea, issued a warning to Leeds by suggesting that recent results reveal the fact that Derby have an extra desire to punch above their weight on their travels.
"I've never heard of going to a training ground on your hands and knees with pliers trying to break into private land to watch", Lampard told the BBC.
Derbyshire Police issued a statement denying those reports, but did confirm that "a man was found at the perimeter fence of Moor Farm and was spoken to".
Media reports claimed the man involved was a "spy" sent by Leeds, also alleging he had damaged a fence, though police insisted the latter was untrue. "No arrests were made and the man was sent on his way".
The English FA said: "We are aware of the incident at Derby County's training ground and we will be investigating the matter".
"I can explain my behaviour but my intention is not to be understood or to justify it".
Pochettino said he would not adopt similar tactics to prepare for the United game.