An unnamed Champions League fixture in England is one of 380 matches across the continent investigators believe was fixed by an Asia-based crime syndicate, along with World Cup and European Championship qualifiers and "several top football matches in European leagues".
Rob Wainwright, director of Europol - the European Union's law enforcement agency, said at a press conference in The Hague: "This is the work of a suspected organised crime syndicate based in Asia and operated with criminal networks around Europe.
"It is clear to us this is the biggest-ever investigation into suspected match-fixing in Europe. It has yielded major results which we think have uncovered a big problem for the integrity of football in Europe.
"We have uncovered an extensive criminal network."