Chelsea boss Antonio Conte admits his players lost their cool as they were reduced to nine men in a shock 3-2 Premier League defeat to Burnley.
The champions suffered their first opening-day loss for 19 years after failing to recover from a first half that saw Gary Cahill sent off before Burnley raced into a three-goal lead, courtesy of Sam Vokes' double and a superb Stephen Ward strike.
Alvaro Morata almost inspired a comeback as a second-half substitute, scoring before setting up a late strike for David Luiz, a goal that came after Cesc Fabregas' removal for a second yellow had seen Chelsea reduced to nine men.
Conte was proud of the second-half effort, but acknowledged Chelsea lost their heads after Cahill saw red, a period in which Fabregas got his first booking for sarcastically applauding referee Craig Pawson, who came under pressure from the home players and supporters.
"The sending off of Cahill was a key moment, because to play the rest of the game with 10 and then nine men is not easy," Conte told Sky Sports, referencing the FA Cup final and Community Shield, when Chelsea also had players sent off.
"In the last three official games we have finished with nine or 10 men. I have to try to adapt a new system and to anticipate this situation of playing with nine or 10 men in the next game.
"I don't want to comment on the referee, absolutely not. We tried until the end to reach a good result against Burnley - it was a pity because our fight in the second half was very good.
Conte says Cahill's red card was key. 'We lost our composure after this red card and we have to improve a lot in this aspect.' #CHEBUR— Chelsea FC (@ChelseaFC) August 12, 2017
Conte says he saw 'two faces' in his side today, one negative before half-time and one positive after it. #CHEBUR— Chelsea FC (@ChelseaFC) August 12, 2017
Conte says his players showed great commitment, will and desire in the 2nd half and he is proud of that. #CHEBUR— Chelsea FC (@ChelseaFC) August 12, 2017
"But our first half we kept losing our heads - after the red card we lost our heads a bit, conceded three goals and then it's very difficult to change the final result.
"We must focus on working very hard with these players. As for the transfer market, the club is trying to do the best. I am not worried, I am ready to fight with these players.
"I repeat: it is important for us to be concentrated on our work, to be focused every day in training and to try to work in our best way. No excuses."
|Kyrgios on Nadal victory: These matches aren´t the problem|
|Sigurdsson feared Everton deal would collapse|
|All Blacks flanker Kaino returns to New Zealand|
|Machado´s walk-off grand slam lifts Orioles|
|Portland Timbers 2 New York Red Bulls 0: Hosts bounce back in MLS|
|Nadal fails to reach Cincinnati semis, Thiem falls to Ferrer|
|Pliskova set for Muguruza semi, Halep wins through|
|Kyrgios stuns Nadal in Cincinnati quarters|
|Mourinho has faith in Man United forward Martial|
|Nationals´ Scherzer on 10-day DL|
|Americans lead Solheim Cup 5.5-2.5 after dominating Europe on day one|
|Pochettino: No issue with Conte ahead of London derby|
|Simpson, Armour share Wyndham lead|
|Bonucci not crucial like Maradona, Messi or Ronaldo - Barzagli|
|Gasol ´may have to rethink things´ if Grizzlies don´t improve|
|Cardinals place Wainwright on 10-day DL with elbow impingement|
|Price not guaranteed to return to Red Sox this season|
|Chelsea are still title favourites - Mourinho cranks up mind games with former club|
|Jardim lauds record-breaking Monaco|
|Ancelotti wants Bayern improvement despite opening Bundesliga win|
|We need time - Conte calls for patience in pursuit of long-term Chelsea success|
|I had the best seat in the house for Cook masterclass - Malan|
|Valencia sign defender Murillo from Inter|
|Rhinos hold off Saints in South Stand farewell, Warriors batter Devils|
|Burton Albion 2 Birmingham City 1: Sordell and Dyer spark second-half comeback|
|Klitschko´s retirement a ´massive´ disappointment for Joshua|
|Bayern Munich 3 Bayer Leverkusen 1: Debutants Sule and Tolisso net in rain-lashed Bundesliga opener|
|Metz 0 Monaco 1: Falcao´s late winner seals record-breaking victory|
|Nadal outbattles Ramos Vinolas to set up Kyrgios quarter-final|
|Is Sanchez another Sissoko? Tottenham record signings haven´t always fared well|
|Cook dazzles again as England dominate West Indies for 470-run lead|
|Barcelona to wear commemorative shirts in tribute to victims of attacks|
|Sanchez joins Mendy, Bonucci and Luiz on list of world´s most expensive defenders|
|Stosur pulls out of US Open with wrist injury|
|Matuidi delighted to follow French legends Zidane, Platini and Deschamps to Juventus|
|West Ham give Reid six-year contract|
|Roma and Inter competing for Sampdoria forward Schick|
|Ilonen brought back down to earth by Siem|
|UEFA charge Hajduk Split and Everton|
|England prop Marler signs Harlequins extension until 2021|
|Fiorentina loan Pezzella from Real Betis|
|Sanchez joins Tottenham in club-record deal from Ajax|
|Martin to join UAE Team Emirates from 2018|
|Draxler not trying to leave PSG after Neymar arrival, says agent|
|Valencia complete deal for Arsenal defender Gabriel|
|South Africa v Argentina: Everything you need to know|
|Matuidi seals €20m Juventus move|
|Bellamy backs Coutinho´s Barcelona wish as Liverpool reportedly reject new £114m bid|
|Rooney deserves more credit, says record Everton signing Sigurdsson|
|Allegri challenges Dybala: I want an extraordinary season|
|Vuelta a Espana: History-hunter Froome no longer the sacrificial lamb|
|Boateng completes Frankfurt move|
|Burke one of many Crystal Palace targets, reveals De Boer|
|Guardiola offers sympathies to ´beautiful´ Barcelona|
|Keizer expects Tottenham target Sanchez to leave Ajax|
|PCB refutes ´baseless´ Umar Akmal allegations|
|Neymar ´one more player´ for PSG boss Emery|
|Vuelta a Espana: Retiring Contador´s career in Opta facts|
|Chelsea boss Conte envious of Tottenham´s foundation|
|Evans is a West Brom player - No transfer plea from Man City boss Guardiola|
|Bakayoko in contention for hasty Chelsea debut at Spurs|
|Manchester United are no dream team, warns Mourinho|
|Jose Mourinho accepts defeat in hunt for fourth Manchester United signing|
|Pochettino wants four Tottenham signings before transfer window closes|
|Kayode loaned to Girona after joining Manchester City|
|Conte bursts out laughing over Costa´s ´criminal´ treatment claim|
|Costa: Chelsea return would not be fair situation|
|Juventus boss Allegri sees ´five or six´ teams in Scudetto race|
|Broncos battle to dent Dragons´ play-off ambitions|
|Barcelona, Real Madrid hold minute´s silence for Las Ramblas victims|