Fulham battled to a 0-0 draw at Chelsea to once again frustrate their big-spending neighbours, moved up to sixth in the Premier League and dealt another blow to their rivals' top-four hopes
Fulham had ended a near-17 year wait for a win in this west London derby last month at Craven Cottage and while they couldn't complete a first-ever league double over Chelsea, they added another point to their impressive tally on their return to the top-flight
Chelsea came close, with Kai Havertz hitting a post in the first half and Conor Gallagher and David Datro Fofana agonisingly unable to convert late on but despite spending a record £322m in the January transfer window, this was an illustration there will be no quick fix for Graham Potter's side
Fofana was one of five winter-window arrivals on show over the course of the game, and while British transfer record signing Enzo Fernandez impressed just days after his £106
8m move - and almost scored with a fine effort from distance - £88
5m Mykhailo Mudryk struggled to get involved and was taken off at half-time in his first home game for the Blues
 Potter later revealed the Ukraine international had been suffering with a "heavy cold"
Like Fofana, Noni Madueke, a £29m purchase from PSV, added some spark to Chelsea's attack, along with fit-again Raheem Sterling, but with just seven goals in their last 12 Premier League games Chelsea remain toothless in the final third and, although they're now up to ninth in the table, the nine-point gap to Manchester United, who have a game in hand, is looking increasingly difficult to overcome
After almost two weeks without a game, Chelsea supporters headed to Stamford Bridge in anticipation of seeing their side boosted and perhaps transformed by their record January transfer outlay, with the World Cup's best young player Fernandez the star attraction
From the first whistle, the Argentina midfielder showed his quality
 Sitting in front of the defence, he punched short passes to up the tempo, showed his range with a crossfield ball, and was the top tackler in a first half where he mixed it with Aleksandar Mitrovic at set-pieces
 After the break, he demonstrated his threat from distance too, shooting narrowly wide
Hakim Ziyech should have done better with one Fernandez through-ball, skewing horribly wide
 But after missing out on his move to Paris St-Germain on Deadline Day, he regained his focus to play a wonderful pass over the top for Havertz to chip against a post on the stroke of half-time
There was far less on offer from the other side of the pitch, though, where Mudryk laboured through his first Stamford Bridge outing, repeatedly giving the ball away or losing his duels in a disappointing first showing in front of the Chelsea fans
 He was subbed off at the break for Madueke
Despite the late scare from Havertz, Fulham took encouragement from the opening 45, which had seen Andreas Pereira test Kepa with a long-range strike, and the visitors continued to press forward when they could after the interval, with Palhinha shooting over, Bobby Decordova-Reid hitting the target and Willian putting in a fine display on his return to the club where he spent seven years of his career
Inevitably Chelsea ramped up the pressure in the latter stages, though, and Gallagher had his head in his hands when he bent a low shot just the wrong side of the post before Fofana took the ball around Bernd Leno only to be denied by a last-ditch block by Tim Ream
 In the end it was superb defending but the new arrival will feel he should have scored
That left Chelsea picking out the positives from the night, with the appearances of Reece James and Ben Chilwell after their respective injuries, as well as a third-straight clean sheet for the centre-back pairing of Thiago Silva and Benoit Badiashile
 But in the end it was another disappointing outing for Potter and his players and they now have a huge task on their hands to finish this season where they want to be in the Premier League
"There was a lot of positivity and good feeling from the start of game but we didn't do enough in terms of our attacking play to create more, which is something we need to do
 Fulham defended well, they were well organised
 That connection, understanding we need we lacked, which is understandable with players coming back from injury and new players
"There were some positives for us, the effort and spirit was there, but as an attacking team we'd like to do more
"I thought [Fernandez] handled himself magnificently
 You can see his quality, what he'll bring to the team
 It's not easy as he hasn't been with us long
 I'm excited with him
"Mudryk has had a heavy cold all week
 We thought 60 minutes would be his maximum but he felt heavy legged at half time and we're still building him up with the break he's had in his season
"I'm confident with the potential we have, the quality in the group
 What we need to do now is gel the team
 There's a lot of football to play
""Everything was really basic from Chelsea
 I think it's because Graham Potter hasn't had time to work with them, he hasn't had time to develop them
 He's going to need some time here
 The front line needs to improve, the midfield needs to improve, so even though they've spent £600m I looked at every department I thought they need to get a lot better
 Whether that is worry or in time it will come
 I wasn't that impressed
 It's going to take a lot of time for players to settle in
"You can't get away from the money
 It's jaw-dropping, staggering
 £600m has been spent
 They are going to need to be patient as no-one has done this before
 And it's easy to see why as it's so difficult to put a team together
""Watching that, it felt like I was playing for Rafa Benitez again at Liverpool - the way Fulham were set up was very similar with the lines tight together and I never felt like Chelsea were going to score
"It didn't feel like the players were defending on their own, it was like a partnership all across the pitch
 That's what that system gives you
""A proper derby
 A good derby from ourselves
 From the first minute the players understood really well the plan and executed it well as well
 We were here to embrace the challenge and play eyes to eyes with Chelsea
"We knew it would be difficult - they had more time to prepare the game
 I told the players we had to be even better than the last game at the Cottage and they did it
 The way we always tried to play forward, our reaction when we lost the ball was really good, and I think we deserved the points
"In the last minutes of the game they pushed us back, a normal situation, but our organisation was really good
"visit their lowly London rivals  in the Premier League on Saturday February 11
 Kick-off is at 12
30pm
head to on Wednesday for their FA Cup fourth-round replay at 7
45pm before returning to Craven Cottage to host  on Saturday with kick-off at 3pm
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