A statement released on Derby's official website read: "Derby County Football Club can confirm that officers from the Derbyshire Constabulary were called to the Derby County Training Centre at around 11:20am on Thursday 10th January 2019 following reports of a man acting suspiciously outside the premises".
"It has since been confirmed to Derby County that the individual concerned is an employee of the footballing staff at Leeds United Football Club".
Leeds news: Marcelo Bielsa admitted to Sky Sports he was responsible for the incident (Pic: SKY SPORTS) "The man responsible for this incident was me".
'If somebody wants to say that's not relevant and that won't affect the game, then I think that if tactics aren't relevant and how you prepare than that means Pep Guardiola, Mauricio Pochettino, Jurgen Klopp, all the great managers, then they are just lucky.
"It's true there was someone from Leeds United", said Biesla when asked about the incident.
"He's admitted it, so I don't think there'll be any further action - but we had a guy in the bushes before we played Leeds earlier this season, and we lost 4-1". If we are going to talk about culturally and say I did it somewhere else and it's fine, I don't believe that. It has disrupted our build-up for this game.
'Now people are going to say I'm making an excuse pre-game.
Police had to come to the training ground, so that was disruptive. Then it went away, so I was actually made aware of it after training and then with a phone call.
Explaining the situation, Lampard outlined that the spy will have been privy to important tactical information about his team, including the absence of Harry Wilson. "It is, of course, up to Derby County as to how they progress this matter but as of yet we have received no complaint or contact from the club".
Derby, who now occupy the final playoff position in the league table, have amassed 43 points from 26 games in the Championship. The man was asked to leave but it wasn't followed up like it was this time'.
'Because if preparation and tactics are not part of the game, and not so sacred that you can work in your own training ground, then I think they're lucky managers because they must be'.
- Lampard urges Hudson-Odoi to snub Bayern Munich
- Bollywood stars call on Modi
- Transfer: Arnautovic drops shocking West Ham transfer bombshell
- Donald Trump teases changes for H-1B visa holders
- Samsung warns sales and profits are going down the toilet
- Google Assistant Now Lets You Check-In to Flights by Voice and More
- Jaguar Land Rover and Ford to axe thousands of jobs
- Art Rooney open to trade for Antonio Brown
- [LISTEN] Parent horrified at alleged racism at NW school
- Oakland A's expect Kyler Murray to declare for National Football League draft