European police said on Monday that about 680 suspicious matches including qualifying games for the World Cup and European Championship, and the Champions League for top European club sides, have been identified in a fix inquiry.
Media reports said Debrecen's 1-0 defeat at Liverpool was under scrutiny amid allegations of a failed plan to concede more than two goals but the club have said the issue had already been looked at and Montenegrin Poleksic has hit out.
"Anyone who watched the match would know what people are saying is bull," the 30-year-old, who made a few decent saves, told Britain's Daily Mail newspaper on Wednesday.
"It was the biggest match of my career and Liverpool have always been my favourite club. I can't believe what people have said about me. But I don't care because I know I am clean."
The case came before the Court of Arbitration for Sport (CAS) in 2011 when Poleksic's team mate Norbert Meszaros, who played against both Liverpool and Fiorentina, had his own 18-month ban for the same offence overturned.
"I was just delighted to be playing at Anfield. It was a great night for me and my club and we played well," Poleksic added.
Last month, FIFA Secretary General Jerome Valcke said no games in Europe's Champions League had been fixed.
