Chelsea manager Antonio Conte believes his team's recent difficulties will enable him to assess the character of the players in his squad.
Chelsea face Manchester United at Stamford Bridge in the Premier League on Sunday, having crashed to a 3-0 defeat at Roma in the Champions League in mid-week.
Early-season difficulties in the Premier League have left the champions nine points below leaders Manchester City and Conte says it is time for his players to stand up and be counted.
"We are struggling a lot because we are facing a lot of important problems," Conte told his pre-match press conference at Chelsea's training base in Cobham, southwest of London on Friday.
"To solve these problems is not simple. In this moment you can see if you are a winner or a loser.
"It's important to show our character, to be strong, to face the problem in the right way."
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United's two trips to Stamford Bridge last season were stormy affairs, thanks in part to the presence of former Chelsea manager Jose Mourinho in the visitors' dug-out.
Chelsea won both games -- 4-0 in the league, 1-0 in the FA Cup -- and Mourinho accused Conte of trying to "humiliate" him by whipping up the crowd during the league game.
The pair have subsequently exchanged barbs via the media, but Conte refused to be drawn on his relationship with his United counterpart.
"It's not important, the relationship between the coaches. We have to respect the job of the other coaches," said the Italian.
"I have a respect for the job. I stop and finish. He's an opponent and I'm an opponent for him. After the game it will be the same."
Conte also declined to discuss Nemanja Matic's close-season transfer from Chelsea to United, which raised eyebrows due to the Serbian midfielder's influence under Conte last season.
Chelsea already have a mountain to climb in the title race and Conte conceded it will be difficult to envisage his team reeling City in if the leaders' stunning form continues.
"Now there is a big problem for all the teams that want to fight for the title and this big problem is Manchester City," Conte said.
"If they continue in this way it will be very difficult to fight for the title."
Conte said N'Golo Kante was "progressing well" after six games out with a hamstring injury and might be in a position to start Sunday's game.
Danny Drinkwater, Kante's former midfielder partner at Leicester City, could make his first league start for Chelsea, but wing-back Victor Moses remains sidelined with a hamstring complaint.
England ODI squad
Eoin Morgan (captain), Moeen Ali, Jonny Bairstow, Jake Ball, Sam Billings, Jos Buttler, Tom Curran, Alex Hales, Liam Plunkett, Adil Rashid, Joe Root, Jason Roy, Ben Stokes, David Willey, Chris Woakes, Mark Wood.
EGYPT SQUAD
Goalkeepers: Ahmed El Shennawy, Mohamed El Shennawy, Mohamed Abou-Gabal, Mahmoud Abdel Rehem "Genesh"
Defenders: Ahmed Elmohamady, Ahmed Hegazi, Omar Gaber, Ali Gazal, Ayman Ahsraf, Mahmoud Hamdy, Baher Elmohamady, Ahmed Ayman Mansour, Mahmoud Alaa, Ahmed Abou-Elfotouh
Midfielders: Walid Soliman, Abdallah El Said, Mohamed Elneny, Tarek Hamed, Mahmoud “Trezeguet” Hassan, Amr Warda, Nabil Emad
Forwards: Ahmed Ali, Mohamed Salah, Marwan Mohsen, Ahmed "Kouka" Hassan.
The five pillars of Islam
'Brazen'
Director: Monika Mitchell
Starring: Alyssa Milano, Sam Page, Colleen Wheeler
Rating: 3/5
Despacito's dominance in numbers
Released: 2017
Peak chart position: No.1 in more than 47 countries, including the United States, the United Kingdom, Australia and Lebanon
Views: 5.3 billion on YouTube
Sales: With 10 million downloads in the US, Despacito became the first Latin single to receive Diamond sales certification
Streams: 1.3 billion combined audio and video by the end of 2017, making it the biggest digital hit of the year.
Awards: 17, including Record of the Year at last year’s prestigious Latin Grammy Awards, as well as five Billboard Music Awards
hall of shame
SUNDERLAND 2002-03
No one has ended a Premier League season quite like Sunderland. They lost each of their final 15 games, taking no points after January. They ended up with 19 in total, sacking managers Peter Reid and Howard Wilkinson and losing 3-1 to Charlton when they scored three own goals in eight minutes.
SUNDERLAND 2005-06
Until Derby came along, Sunderland’s total of 15 points was the Premier League’s record low. They made it until May and their final home game before winning at the Stadium of Light while they lost a joint record 29 of their 38 league games.
HUDDERSFIELD 2018-19
Joined Derby as the only team to be relegated in March. No striker scored until January, while only two players got more assists than goalkeeper Jonas Lossl. The mid-season appointment Jan Siewert was to end his time as Huddersfield manager with a 5.3 per cent win rate.
ASTON VILLA 2015-16
Perhaps the most inexplicably bad season, considering they signed Idrissa Gueye and Adama Traore and still only got 17 points. Villa won their first league game, but none of the next 19. They ended an abominable campaign by taking one point from the last 39 available.
FULHAM 2018-19
Terrible in different ways. Fulham’s total of 26 points is not among the lowest ever but they contrived to get relegated after spending over £100 million (Dh457m) in the transfer market. Much of it went on defenders but they only kept two clean sheets in their first 33 games.
LA LIGA: Sporting Gijon, 13 points in 1997-98.
BUNDESLIGA: Tasmania Berlin, 10 points in 1965-66
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