The man at the centre of the Donald Trump dossier reportedly helped the FBI compile information for a 2010 Fifa corruption probe.
The 52-year-old former British intelligence officer - who runs London-based firm Orbis Business Intelligence - is alleged to have compiled the dossier and handed it over to the American authorities.
The dossier, which is unverified, contains allegations that Russia had compromising information on Mr Trump and that he engaged in lurid activities with Russian prostitutes.
Now, it has emerged that Steele's firm was hired by the English Football Association to look into corruption allegations around Fifa officials following England's failed bid for the 2018 World Cup.
The information he compiled was eventually delivered to the FBI, and it is thought this is what led to the indictments of current and former officials of the soccer governing body. It's thought his work ultimately helped bring down Fifa president Sepp Blatter.
He's thought to have gone to ground once he realised he would be idenitified in connection with the report, which has been widely condemned by Donald Trump and Russian authorities.