Thomas Tuchel said Chelsea face a "big fight" to finish in the Premier League's top four after their damaging 1-0 defeat against Arsenal on Wednesday.
Tuchel's side missed a chance to climb above Leicester into third place as Emile Smith Rowe bagged the first half winner at Stamford Bridge.
Smith Rowe punished a wayward back-pass from Jorginho to leave Tuchel anticipating a tense finish in the race to qualify for next season's Champions League.
Fourth-placed Chelsea are six points ahead of fifth placed West Ham, who have a game in hand, and seven in front of sixth placed Liverpool, who have two games in hand.
Chelsea have two league matches remaining against Leicester and Aston Villa and Tuchel said: "It was always a big fight, it never felt like a relief."
"If anybody felt it like this today, maybe, it's the last lesson to learn."
"It's still in our hands. It is another chance missed. We have had some good results, so we have to cope now with a loss."
Tuchel conceded he was to blame for Chelsea's first defeat in eight games in all competitions after he made seven changes from Saturday's win at Manchester City.
"Maybe I gave some signals to the team with changes that Saturday is on my mind," Tuchel said in reference this weekend's FA Cup final against Leicester.
"Even if it's one per cent or five per cent, this is not how we approach things, because you get punished. It's hard to swallow, hard to accept, but there's no other way."
Arsenal boss Mikel Arteta admitted the Gunners' first Stamford Bridge win in a decade was much-needed after a difficult period.
Arteta has been under-fire during a troubled campaign, but he insisted his side have not given up hope of qualifying for Europe next term.
They could make the new Europa Conference League and have an outside chance of reaching the Europa League.
"Nothing is broken inside. I don't know how they want to try from the outside. They (the media) try to put things on me that I never said," Arteta said.
"I said if I don't get 120 percent off each player it's my fault and responsibility. It wasn't like this in the press. I'm so annoyed by that."
"They can try but they're not going to break it. The players showed how much they mean it, how much spirit and attitude there is in the group, and how much they care about it.
"It was a big message. Europe is still mathematically possible, so we have to keep giving ourselves the last chance while it's possible."
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Babumoshai Bandookbaaz
Director: Kushan Nandy
Starring: Nawazuddin Siddiqui, Bidita Bag, Jatin Goswami
Three stars
Tuesday's fixtures
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The specs
Engine: 2.0-litre four-cylinder turbo
Power: 178hp at 5,500rpm
Torque: 280Nm at 1,350-4,200rpm
Transmission: seven-speed dual-clutch auto
Price: from Dh209,000
On sale: now
The President's Cake
Director: Hasan Hadi
Starring: Baneen Ahmad Nayyef, Waheed Thabet Khreibat, Sajad Mohamad Qasem
Rating: 4/5
Milestones on the road to union
1970
October 26: Bahrain withdraws from a proposal to create a federation of nine with the seven Trucial States and Qatar.
December: Ahmed Al Suwaidi visits New York to discuss potential UN membership.
1971
March 1: Alex Douglas Hume, Conservative foreign secretary confirms that Britain will leave the Gulf and “strongly supports” the creation of a Union of Arab Emirates.
July 12: Historic meeting at which Sheikh Zayed and Sheikh Rashid make a binding agreement to create what will become the UAE.
July 18: It is announced that the UAE will be formed from six emirates, with a proposed constitution signed. RAK is not yet part of the agreement.
August 6: The fifth anniversary of Sheikh Zayed becoming Ruler of Abu Dhabi, with official celebrations deferred until later in the year.
August 15: Bahrain becomes independent.
September 3: Qatar becomes independent.
November 23-25: Meeting with Sheikh Zayed and Sheikh Rashid and senior British officials to fix December 2 as date of creation of the UAE.
November 29: At 5.30pm Iranian forces seize the Greater and Lesser Tunbs by force.
November 30: Despite a power sharing agreement, Tehran takes full control of Abu Musa.
November 31: UK officials visit all six participating Emirates to formally end the Trucial States treaties
December 2: 11am, Dubai. New Supreme Council formally elects Sheikh Zayed as President. Treaty of Friendship signed with the UK. 11.30am. Flag raising ceremony at Union House and Al Manhal Palace in Abu Dhabi witnessed by Sheikh Khalifa, then Crown Prince of Abu Dhabi.
December 6: Arab League formally admits the UAE. The first British Ambassador presents his credentials to Sheikh Zayed.
December 9: UAE joins the United Nations.
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1. Black holes are objects whose gravity is so strong not even light can escape their pull
2. They can be created when massive stars collapse under their own weight
3. Large black holes can also be formed when smaller ones collide and merge
4. The biggest black holes lurk at the centre of many galaxies, including our own
5. Astronomers believe that when the universe was very young, black holes affected how galaxies formed
Who's who in Yemen conflict
Houthis: Iran-backed rebels who occupy Sanaa and run unrecognised government
Yemeni government: Exiled government in Aden led by eight-member Presidential Leadership Council
Southern Transitional Council: Faction in Yemeni government that seeks autonomy for the south
Habrish 'rebels': Tribal-backed forces feuding with STC over control of oil in government territory
Brief scores:
Pakistan (1st innings) 181: Babar 71; Olivier 6-37
South Africa (1st innings) 223: Bavuma 53; Amir 4-62
Pakistan (2nd innings) 190: Masood 65, Imam 57; Olivier 5-59
New Zealand squad
Tim Southee (capt), Trent Boult (games 4 and 5), Colin de Grandhomme, Lockie Ferguson (games 1-3), Martin Guptill, Scott Kuggeleijn, Daryl Mitchell, Colin Munro, Jimmy Neesham, Mitchell Santner, Tim Seifert, Ish Sodhi, Ross Taylor, Blair Tickner
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RESULT
Bournemouth 0 Southampton 3 (Djenepo (37', Redmond 45' 1, 59')
Man of the match Nathan Redmond (Southampton)
The years Ramadan fell in May