Chelsea head into their Premier League blockbuster with Manchester United on Tuesday rested and ready to win their way back into the top four.
Sir Alex Ferguson's side have played twice since Chelsea defeated FC Copenhagen 2-0 in Denmark last week and the Blues will hope to benefit from the rest in potentially their last chance to be involved in the Premier League title race.
A win would lift Chelsea into fourth, one of the Champions League spots, and see them trail table-topping United by 12 points with a game in hand, leaving captain John Terry to describe the fixture as a must-win match.
"We are very confident at home and the way they (United) play might help us," Terry said.
"I'm not sure how they are going to come at us but other teams that have come to the Bridge have sat back and we've found it hard to break them down. It is a must-win game for us and the fans are going to be up for it."
Despite the fact last year's Premier League runners-up were 4-0 winners at Wigan on Saturday, they have just won four league matches on the road this season and have not won at Stamford Bridge since a 3-0 triumph in 2002.
Chelsea's three-pronged attack of Fernando Torres, Nicolas Anelka and Didier Drogba could also cause Manchester United real problems and although Torres is yet to score for his new club after a 50-million-pound deadline day move from Liverpool, a goal on Tuesday could make him a fan favourite.
Chelsea will miss midfielder Yossi Benayoun while Alex and Yuri Zhirkov are also likely to miss out with knee and calf concerns respectively.
The fixture, originally scheduled for December but postponed due to heavy snow, means Manchester United have two massive Premier League fixtures in less than a week.
After travelling to Chelsea on Tuesday, Ferguson's side will travel to Merseyside in preparation for a match against Liverpool at Anfield on Sunday, in potentially a crucial week in the title race.
Nani, who has been one of the best performers all season for last year's Premier League runners-up, said it is vitally important his side do not lose either of the two fixtures, with Arsenal snapping at their heels.
"We have some tough games coming up," Nani said.
"It's the most important period of the season and I think that if we can beat Chelsea and Liverpool then we'll have a fantastic opportunity to win the league."
"But that's easy to say: it's much harder to do it. Chelsea and Liverpool are fantastic teams and obviously they're desperate to win as well. We know it won't be easy."
"Of course, we may not be able to win every game, and if we end up getting a draw against somebody then it's not the end of the world. The important thing is not to lose."
Manchester United are likely to be without defensive pair Jonny Evans and Rio Ferdinand due to ankle and calf injuries, while Anderson, Park Ji-Sung and Antonio Valencia are still weeks away from returning.
|Coach: André Villas-Boas|
for D. Sturridge 70'
|Ryan spurred on by Australia´s 2011 heartbreak|
|Montella will not sell Cuadrado cheap|
|Mali, Guinea furious with tie-breaking procedure|
|Luis Enrique defends Neymar´s behaviour|
|Chile 3 USA 2: Gonzalez´s brace extends Americans´ pain|
|Gabi: Referee lacked personality|
|Franjic cleared of serious injury|
|Our progression was deserved - Pochettino|
|Ivory Coast´s tournament starts now - Renard|
|Allegri rejects Juve criticism|
|Atletico´s Arda Turan escapes red card after throwing boot at assistant referee|
|Atletico Madrid 2 Barcelona 3 (agg 2-4): Neymar double secures semi-final spot|
|Parma 0 Juventus 1: Morata late show wins it for visitors|
|Sheffield United 2 Tottenham 2 (agg 2-3): Pochettino books Wembley final|
|Ecuador dismiss Vizuete|
|Championship Preview: Middlesbrough out to continue run, Bournemouth seek response|
|Guinea 1 Mali 1: Lots to decide Group D runners-up|
|Cameroon 0 Ivory Coast 1: Gradel strike sends Renard´s men through|
|Lots to be drawn to decide AFCON qualifiers|
|Eredivisie Preview: De Boer warning for Ajax, leaders PSV host Willem II|
|Bundesliga Preview: Leaders Bayern and Wolfsburg kick off Ruckrunde|
|Howard boost for Everton|
|Ligue 1 Preview: Jardim plays down Monaco title hopes ahead of Lyon showdown|
|Costa charged by FA for alleged Can stamp|
|O´Keefe joins Cardiff|
|Dons teenager Alli in demand|
|Gabriel seals Arsenal switch|
|Wolfsburg v Bayern Munich: Guardiola eyes ´big step´ to Bundesliga title|
|Paris Saint-Germain v Rennes: Montanier seeks another upset in French capital|
|Martinez rules out panic buys|
|Gilardino targets Fiorentina goals|
|Milan agree Bocchetti loan|
|League Two Preview: Cambridge and Luton prepare to renew rivalries|
|Ronaldo hit with two-match ban|
|West Brom complete McManaman deal|
|Sullivan hits back in Sakho row|
|Richards: Cuadrado suited to Premier League|
|Figo to challenge for FIFA presidency|
|Inzaghi out to freshen up struggling Milan|
|Wigan agree a fee for Mckay|
|Carver eyes strong finish|
|Bowen cools talk of Stoke swoop for Sandro and Traore|
|Lazio-bound Morrison lands in Rome|
|Mourinho fined £25k for ´campaign´ claims|
|Mainz bring in Castillo|
|Villa: Lambert will not be sacked|
|Monk hopeful of adding new faces|
|Sainsbury ready to replace Franjic|
|Beckenbauer hopeful of Guardiola stay|
|Mourinho hits back at Costa critics|
|Rodriguez grateful for ´fundamental´ Ronaldo support|
|La Liga Preview: Real want revenge against Socieded|
|No Dallas move for Essien|
|Bale rubbishes United link, Ronaldo rift|
|Sahin in ´good shape´ for Bundesliga resumption|
|Rodgers slams Costa´s stamp collection|
|Under-fire Inzaghi urges patience|
|Rodgers: Courtois saved Chelsea|
|Mashaba wants lessons to be learnt after AFCON exit|
|Mourinho refuses to wade into Costa incidents after Chelsea win|
|Football League Review: Bent double sends Derby second, Rotherham triumph|
|Chelsea 1 Liverpool 0 (aet, agg 2-1): Ivanovic settles action-packed League Cup semi-final|
|Milan 0 Lazio 1: Inzaghi future plunged into further doubt|
|Neymar dreaming of ending Brazil´s home hoodoo|
|South Africa 1 Ghana 2: Late Ayew winner seals qualification|
|Senegal 0 Algeria 2: Mahrez and Bentaleb dump Senegal out|
|Bocchetti poised to join Milan on loan|
|De Rossi suffers calf injury|
|Montano accuses Oldham of double standards after Evans saga|
|Bojan out for the season with ruptured cruciate|
|Cameroon v Ivory Coast: Renard defends Yaya Toure|
|Yanga-Mbiwa makes Roma move permanent|
|Guinea v Mali: Quarter-final berth on offer in Mongomo|
|Thohir: Inter not reliant on European football|
|Bremen land Vestergaard|
|Allegri refuses to rule out Cassano move|
|Mexes handed four-game ban after Lazio dismissal|
|Joyce reveals Valdes´ inspirational team-talk|
|CAF announces AFCON venue switches|
|Alcacer commits future to Valencia|
|Postecoglou calls for Aussie ´energy´|
|Everton confirm Eto´o departure to Sampdoria|
|Pochettino to stick with Vorm despite cup error|
|Barcelona are not favourites against Atletico, says Luis Enrique|
|Allegri wary of Parma backlash in Coppa Italia|
|Zidane urges Real to tie Ancelotti down|
|FIFPro: Transfer system failing football|
|Anderlecht condemn Standard´s Defour banner|
|Australia 2 UAE 0: Socceroos ease into home final|
|Barca overhaul youth system|
|FIFPro demands clubs respect contractual obligations|
|Mahmoud targeting World Cup place with Iraq|
|Fabregas wants Chelsea to show winning mentality|
|Rangers borrow £10m from Ashley´s Sports Direct|
|Lyon face anxious wait over Lacazette|
|Undermanned Lazio recall Perea|
|Ki wants South Korea to prove their superiority|
|Ghana´s Gyan wary of South Africa|
|Mashaba urges South Africa to attack|
|Benitez: Napoli deserved to win|
|Pacos de Ferreira 1 Benfica 0: Leaders fail from the spot|
|Serie A Review: Higuain at the double in controversial Napoli win, Udinese see off Empoli|