Leicester - Leicester City match-winner Wes Morgan said desire had been the key ingredient after his side sank Southampton 1-0 on Sunday to move seven points clear in the Premier League.
The 32-year-old Jamaica centre-back headed home a cross from Christian Fuchs in the 38th minute to end an 11-month goal drought and leave underdogs Leicester needing 12 points from their last six games to claim the title.
Second-place Tottenham Hotspur had inadvertently left the door open after drawing 1-1 at Liverpool on Saturday and Leicester captain Morgan said that he and his team-mates had been determined to take advantage.
"We saw the (Tottenham) game yesterday was a draw and wanted to make the most of our opportunity. We really wanted it today," he told Sky Sports at the King Power Stadium.
"I've been getting a lot of stick because I haven't scored all season, so it's great to shut them up. I was quite ill yesterday, but obviously I wanted to play."
Four wins will now suffice to deliver Leicester's first ever top-flight title and manager Claudio Ranieri urged his players to keep their feet on the ground over the run-in.
"Everyone is expecting something more for us and we are in the cloud, but we have to keep concentrating," said the Italian, who succeeded the sacked Nigel Pearson prior to the start of the season.
"We want to stay there and continue. If the others are better than us. then congratulations. We know it will be hard. In the next match Sunderland will be fighting to survive.
"I don't want to think about champions. I want to focus on the match. There is a chance for us to be champions this season, but we have to be professional."
Southampton manager Ronald Koeman said that Ranieri's side would make deserving champions, but he felt that Leicester defenders Danny Simpson and Robert Huth had got away with penalty-box handballs in each half.
"For the third match in a row, we don't get a 100 percent penalty - Stoke City away, Liverpool at home, and today two penalties," said the Dutchman, whose side remain in seventh place.
"The big one is when Sadio Mane's shot hits Danny Simpson and it is a red card and a penalty.
"I don't think that they (referees) are against Southampton, but it is very strange."