The Reds are not suspected of any wrongdoing after reports emerged regarding the Hungarian outfit's goalkeeper following a 2009 Champions League clash with the Anfield giants
Danish newspaper Ekstra Bladet claimed the 2009 fixture at Anfield is one of the matches under investigation, but stressed that no accusation has been leveled at Liverpool.
But a spokeperson for the Anfield club confirmed to Goal.com that neither Europol nor Uefa have yet made contact with them regarding the matter.
The report in Ekstra Bladet claimed Serbian goalkeeper Vukasin Poleksic was approached by fixers intending to rig the betting market for total goals in the fixture, though that ultimately failed as Debrecen only conceded one goal, courtesy of Dirk Kuyt's winner.
Liverpool are understood to be uninvolved in the accusations and no one at the club is alleged to have acted improperly.
Poleksic was also involved in another match that German police had established was fixed - Debrecen's 4-3 loss to Fiorentina in the same Champions League campaign. Poleksic was later banned for two years by Uefa for failing to report the approach from a Croatian-led criminal gang. The Court of Arbitration for Sport (CAS) later upheld the ban after Poleksic claimed innocence.
Europol are investigating 380 suspicious matches in 15 countries, though director Rob Wainwright refused to identify the match in question because of "ongoing judicial procedures".
When contacted by Goal.com on Tuesday, Europol declined to comment on any media reports, insisting they cannot comment on specific players or clubs while the investigation is ongoing.
However the Ekstra Bladet report identifies the Liverpool versus Debrecen game and claims that text messages obtained by the police from those behind the match-fixing ring lamented missed opportunities from Steven Gerrard that would have made the margin of victory larger.
Meanwhile, the Hungarian club say that the two-year ban handed out to Poleksic in 2010 for not reporting match-fixing approaches prior to the Liverpool match confirm that the alleged offences have been dealt with.
In a Debrecen statement first published in 2010, the club reiterated: "In the view of the Uefa Disciplinary Committee, Vukasin Poleksic failed to comply with his duties when he did not report to Debrecen that before two Champions League matches unknown people tried to persuade him to influence the result.
"The investigation revealed that Poleksic rejected the requests. Furthermore, the probe found that the matches were not influenced by anything connected with the bribery.
"But the player committed an error by failing to inform the authorities immediately, therefore he was punished for not meeting the reporting requirement."