From our partners at BBC Business:
The betting industry is licking its financial wounds.
"In the history of betting, certainly since it was legalized in 1961, a [single event] winner with odds of 5,000-1 has never happened," said Simon Clare from the betting firm Coral. "Every bookmaker is crying out in pain."
"That's a barometer of what Leicester have done and just how amazing this win is," he added.
Jessica Bridges from rival firm Ladbrokes agrees.