Report to implicate more IAAF officials as alleged corruption scandal
A report will drag back Athletic though the mud on Monday that promises to show more IAAF officials allegedly accepted bribes to cover up positive drug tests.
"Here you potentially have a bunch of old men who put a whole lot of extra money in their pockets - through extortion and bribes - but also caused significant changes to actual results and final standings of international athletics competitions.
"This is a whole different scale of corruption than the FIFA scandal."
Speaking on BBC Radio 5's Sportsweek, Coe admitted these were indeed "dark days" for athletics.