Leicester moved up to second in the Premier League as a 2-0 victory over Arsenal further dented the Gunners' hopes of a top-four finish.
Chelsea were also 2-0 victors against Crystal Palace as they too jumped above Manchester City into third.
But it was another woeful afternoon for north London's big two as Tottenham were held 1-1 at home by Sheffield United to slip to 12th.
League leaders Liverpool host City in a highly-anticipated clash between the champions of Europe and champions of England at Anfield on Sunday.
Leicester and Chelsea took advantage of kicking off a day earlier to move a point ahead of City and close to within five of Liverpool.
The Foxes' superior goal difference takes them into second as second-half strikes from Jamie Vardy and James Maddison piled more pressure on beleaguered Arsenal boss Unai Emery.
"I'm playing probably the best that I ever have," said Vardy, one of the heroes of Leicester's remarkable 2015/16 Premier League title win.
"There's a lot of momentum round the club and everyone's enjoying themselves. That enjoyment comes with winning."
- Tottenham down to 12th -
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"We are not in a good position in the table."