Ex-Blackburn striker Jansen's goal inspired Dean Saunders' team to their first Blue Square Premier win in seven games at Victoria Stadium on Tuesday.
Russell scored twice in the closing stages to ensure a third straight Scottish Premier League win for United.
Dembele's strike gave Fulham their first Premier League win of the season, after three draws, and ended Wolves' unbeaten run.
United had hoped Vidic would have recovered from the virus that kept him out of Saturday's Premier League win at West Ham.
And Villa secured their 100th Premier League win away from home in style by blending pace and power, and a resolute backline.
Allen enjoyed a dream debut as his 25-yard stunner inspired the Dragons to a 3-1 Blue Square Premier League win over York City.
The 24-year-old full-back, who has been nursing a knee injury this season, started the club's Premier One win over West of Scotland at the weekend.
He has made 16 appearances for Chelsea but only those five starts and was an unused substitute in Monday night's 4-0 Premier League win over Bolton.
Cameroon international Song was substituted during Saturday's Premier League win over Wolverhampton due to a groin worry, but a scan on his knee has revealed cartilage damage.
Earlier on Sunday, Chelsea secured only their second home Premier League win under interim manager Rafa Benitez after beating European Champions League rivals Arsenal 2-1 at Stamford Bridge.
It was a whirlwind finish to a match filled with goalmouth action, a suitable way for Chelsea to mark their 350th Premier League win - a feat only Manchester United and Arsenal have previously achieved.
Portsmouth are still without a Premier League win since 30 November but, after seeing his side pick up their first point at White Hart Lane, Pompey boss Tony Adams was full of praise for his players.
Harry Redknapp rattled a few cages by suggesting Spurs could win the Premier League after their win at Arsenal and I can see why he said it because he has the strongest squad in the division.
Chelsea's win and progress from the group stage was a rich reward for Villas-Boas's bravery in leaving out Lampard, completing a satisfactory few days for the 34-year-old Portuguese after a vital Premier League win at Newcastle United on Saturday.
This first Premier League win in five games for the north London club narrows the gap between them and fourth-placed Manchester City to three points and improved their chances of a second successive campaign in Europe's premier club competition.
Grant came under renewed pressure after a dismal performance in last week's defeat at Liverpool - but there was a mixture of relief and elation around Upton Park as the Hammers secured only their second Premier League win of the season.
Arsenal went into the match on the back of their stunning 6-1 Premier League win at Everton, a match in which Gallas was also on target, and the French defender made it two goals in two games with a huge slice of luck.
It would have been an amazing story and OJ's only premier-class win but Alex Barros, riding a 500cc Honda, wiped him out in turn one with three laps to go.
After leaving the Deva Stadium, Caernarfon-born Owen joined Blue Square Premier rivals Wrexham on trial where he scored in a 3-2 friendly win over Welsh Premier League side Airbus UK Broughton.
"We want to win this Premier League and take the title from Manchester United, " said the Blues skipper.
But United look like they are going to win the Premier League and Ronaldo has been an inspiration for them.
Playing for Liverpool is a big motivation for everyone and we will do everything we can to win the Premier League.
There is the battle to win the Premier League, where top clubs like Manchester United and Manchester City are battling for supremacy.
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Not the first time it looks as if Manchester United are going to rebound and win the Premier League only a season after relinquishing it.
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Ranieri was in charge when Russian billionaire Abramovich bought Chelsea in 2003 and left a year later when Mourinho arrived to win consecutive Premier League titles.
United need one point from their final two games to win the Premier League title, but Benitez does not think there is a level playing field.
In the '90s you could win a title with a very good side - now you have to have an outstanding side to win the Premier League.
If Krigger's prediction is right, he'll be the first black jockey to win the premier race since Jimmy Winkfield took the trophy back-to-back in 1901 and 1902.
Bath qualified for next year's Heineken Cup by virtue of their league position, while Saracens can reach Europe's premier competition if they win this season's European Challenge Cup.
He helped Jose Mourinho's side win the Premier League English title in 2005 and 2006, as well as two Carling Cup triumphs and the FA Cup last May.
BBC: SPORT | Football | My Club | Chelsea | Makelele extends Chelsea contract
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