Chelsea did the damage in the first half as a 3-0 win over Portsmouth stretched their lead to 11 points at the top of the Barclays Premiership.
Two goals from Didier Drogba and one for Arjen Robben left Pompey with no capital gains, and turned the heat up on title rivals Manchester United and Arsenal.
Jose Mourinho's side have now conceded just eight goals in their opening 24 league games, and they require 11 wins from their remaining 14 matches to clinch the club's first league title since 1955.
Drogba repaid another slice of his hefty transfer fee by firing Chelsea ahead in the 15th minute, the Ivory Coast striker turning in a Robben cross from close range.
Robben stretched their lead to 2-0 after 21 minutes when he latched on to a Frank Lampard pass and coolly sidestepped goalkeeper Jamie Ashdown before slotting home.
With Lomana LuaLua and Amdy Faye suspended, Portsmouth began well but faded fast, although Aiyegbeni Yakubu ought to have grabbed one back, only to miss from close range.
It became 3-0 after 39 minutes when Drogba struck again, this time from long range with a terrific free-kick.
Manchester United had to fend off a determined Aston Villa at Old Trafford before eventually running out comfortable 3-1 winners, a result which lifted them above Arsenal who face Newcastle at Highbury tomorrow.
The in-form Cristiano Ronaldo fired home after eight minutes, his second goal in four days after calming nerves with the opener in the FA Cup win at Exeter.
Louis Saha took Roy Keane's pass from midfield, beat two Villa defenders, and then slipped a superb ball inside Olof Mellberg to Ronaldo, who beat Thomas Sorensen with a low finish from 15 yards.
But Gareth Barry levelled up for Villa after 53 minutes after a neat move involving Nolberto Solano.
Then came United's revival, with Saha restoring their lead after 69 minutes and Paul Scholes heading a third a minute later after Ronaldo's shot had been only parried by Sorensen.
Everton, with James Beattie making his home debut, were beaten 1-0 by Charlton at Goodison, with Matt Holland firing the Addicks ahead from long range just before the break.
Beattie hit the post in the second half, and that was as close as the Toffees came.
Birmingham thrust new loan signing Salif Diao straight into action at St Andrews, but they succumbed to a 2-1 defeat against Fulham, whose improvement continued.
Moritz Volz's messy own goal after 51 minutes gave Birmingham the lead, but Andy Cole's penalty put the Cottagers level and Papa Bouba Diop headed his second matchwinner in a week to give the visitors a valuable victory, repeating the trick after doing similar damage to West Brom.
Crystal Palace upped the tempo in the second half and crushed Martin Jol's Tottenham 3-0 at Selhurst Park.
Eagles went in front after 66 minutes when Mikele Leigertwood turned a left-wing cross from Tom Soares past Paul Robinson.
Danny Granville then added a second for Palace after 70 minutes and an Andy Johnson penalty seven minutes later, after he had been brought down, put the finishing touches to the welcome win.
Struggling Norwich looked dead and buried against Middlesbrough going into the closing stages, but they clawed back three goals to secure a 4-4 draw.
Damien Francis gave the Canaries an 18th-minute lead, only for Jimmy Floyd Hasselbaink to bring Middlesbrough back onto level terms soon after the half-hour mark.
Boro were revitalised for the second half and a quickfire double from Franck Queudrue, who headed home a Stewart Downing corner after 49 minutes and then tapped home his second six minutes later, looked to have put the game beyond Norwich.
Hasselbaink's second of the game, a curling free-kick after 78 minutes, made it miserable for Norwich, but they had some cause for cheer two minutes later when £3 million man Dean Ashton scored his first goal since joining from Crewe.
A Leon McKenzie header in the 90th minute made for a tense finish, and incredibly Norwich then pinched an equaliser in injury-time through Adam Drury - the sort of finish which could change their season.
Their delight may, however, be tempered by news of the wins for Palace and Southampton.