Leicester manager Nigel Pearson was left to rue the end of a nine-game winning run after his side battled back to claim a last-gasp draw against Watford.
City, who had won their last nine Sky Bet Championship games, snatched a point with a late goal from Danny Drinkwater.
It looked as though top-of-the table Foxes were heading for their first league defeat since they lost at Brighton on December 7, when they went into five minutes of stoppage time trailing 2-1.
However, a 90th-minute score by Drinkwater saw them claim a point which put them 11 points clear of second-placed Burnley at the top of the standings.
Pearson said: “I’m slightly disappointed not to be able to achieve 10 wins on the trot, but the run that we’ve been on has been very, very good.
“We’re 11 unbeaten and I think we deserved to get at least a point. We’re disappointed with the goals we conceded, but you’ve got to give Watford credit for the way they set up against us - they were disciplined and made it hard for us.
“You can’t expect your players to be in form throughout the entirety of the season, but what we do have is a squad of players that are very supportive of each other.”
Burnley manager Sean Dyche hailed his players as they came back from a goal down to beat Millwall 3-1.
Burnley’s unbeaten home league record appeared to be under threat when Martyn Woolford put struggling Millwall in front after 27 minutes.
But the visitors’ lead lasted just two minutes as Danny Ings grabbed his first of the game, turning in the box before curling past the helpless Stephen Bywater before Dean Marney unleashed from 25 yards just before the break, with Ings making the game safe on 62 minutes.
“It was a very thorough performance, high quality in the conditions,” Dyche said. “There was some excellent football played by ourselves and it was a very dominant display overall.”