With a 3-1 win at Manchester City, Leicester showed why it really could be lifting the Premier League trophy for the first time in May.
From 5,000-1 outsiders for the title in August, Leicester became the 7/4 favorites with several British bookmakers on Saturday after going five points clear at the top. City's home loss was compounded by Tottenham edging Watford 1-0 and replacing Manuel Pellegrini's team in second place.
Juergen Klopp missed Liverpool's home match against Sunderland with a suspected bout of appendicitis. In his absence, Liverpool threw away a 2-0 lead in the last 10 minutes to draw 2-2 with the strugglers.
Liverpool was overtaken by crosstown rival Everton, which moved into seventh place by winning 3-0 at Stoke.
Aston Villa won for only the third time this season but remained bottom despite beating Norwich 2-0. Sunderland is four points ahead of Villa next-from-bottom.
Norwich replaced Newcastle in the relegation zone, with the north-east side beating West Bromwich Albion 1-0.
Crystal Palace halted a run of five successive league losses by drawing 1-1 at Swansea.