Thibaut Courtois blamed overconfidence for the bewildering 5-2 capitulation to Switzerland that cost Belgium a place in the Nations League Finals.
Roberto Martinez's men were cruising towards the point required to top Group 2 in League A after Thorgan Hazard's brace put them in control in Lucerne.
Switzerland, left needing a two-goal victory to advance, conjured a remarkable response to lead 3-2 at half-time, before Nico Elvedi and hat-trick hero Haris Seferovic completed the unthinkable after the interval.
Courtois was powerless to stop the onslaught and diagnosed a premature sense of security as contributing to the Red Devils' downfall.
"We started well, took the early lead and doubled it also. Then we started to lose duels and gave away a stupid penalty," Courtois said of the Nacer Chadli foul that handed Switzerland a lifeline.
"Suddenly the Swiss got hope for more. I think after our 2-0 lead the feeling went into our team that it could not go wrong.
"But this is a high-level competitive match and hopefully not reaching the final four will teach us a lesson for the future."
Disappointed we couldn't qualify for the #FinalFour @Fanclub1895 thx 4being with us this #NationsLeague !— Belgian Red Devils (@BelRedDevils) November 18, 2018
2018 brought us ups and downs.
We'll focus now on #EURO2020 qualification.
See you next year #REDTOGETHER #SUIBEL pic.twitter.com/u1h7Va9A4m
Paris Saint-Germain defender Thomas Meunier agreed with his team-mate's assessment, describing Belgium's performance as the worst of his five-year international career.
"This is more than an enormous disappointment," the wing-back said. "After the 2-0 lead we had everything in our own hands. It was a perfect game for us.
"We could have scored even more. But then they scored three out of three chances, it was really unbelievable.
"It was just not enough from our side. I think we just thought we reached the final four already. Tonight was the worst match with the Red Devils in my career."
15. Dezember 2018
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|Liverpool v Manchester United: Resurgent Rashford now a leader for Mourinho|
|Injury-plagued Nuggets beat Thunder to hold Western Conference lead|
|Southee takes five as Sri Lanka recover in Wellington|
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|Guardiola: Premier League title race similar to Barca-Madrid battles|
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|Liverpool can´t be judged just on trophies – Klopp responds to Mourinho|
|Athletics´ Chapman undergoes procedure on left shoulder|
|Marcelo: Real Madrid miss Ronaldo|
|Ronaldo right about Juventus team spirit – Allegri|
|Klopp: I´m not the pope of football tactics|
|Stade beat Ospreys on emotional Chauvin tribute night|
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14. Dezember 2018
|Vertonghen eyeing Spurs future beyond 2020|
|De Bruyne injuries could be a blessing for City, says Guardiola|
|Emery prepared to face Arsenal´s centre-back crisis|
|Ulster complete Scarlets double, Exeter gain Gloucester revenge|
|Sheffield United 1 West Brom 2: Baggies comeback boosts automatic promotion push|
|Del Potro back on court following knee injury|
|Canelo v Fielding: Rocky ready to write his own fairytale in New York|
|Boca part company with Schelotto after Copa Libertadores loss to River|
|Canelo v Fielding: Tale of the tape|
|Juventus defender Cancelo has knee surgery|
|Canelo v Fielding: Alvarez and Rocky make weight in New York|
|Spalletti does not fear another mid-season crisis at Inter|
|Salah headlines CAF Player of the Year shortlist as Koulibaly misses out|
|Beckham Jr. out of Titans clash|
|Lipsky hits the front at Leopard Creek|
|Pederson coy over Wentz back injury|
|Liverpool ´not really likely´ to be active in January window, reveals Klopp|
|Always on the move and unpredictable - Pavard reveals surprising choice over toughest opponent|
|We need to get back to respect - Lampard alarmed by hate in football|
|Giles returns to England to replace Strauss as director|
|Hansen has no issue with Milner-Skudder Toulon switch|
|Juventus to rest Ronaldo after Torino showdown|
|Titmus strikes gold again as world records tumble in Hangzhou|
|Malinga to captain Sri Lanka in New Zealand|
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|United a long way from Mourinho´s vision|
|´Klopp denies an answer!´ - Liverpool boss dismisses questions about ´world-class´ Pogba|
|Returning Nowitzki ´so tired´ after making NBA history|
|Aguero and De Bruyne in contention for Manchester City v Everton|
|Simeone has no plans to cash in on Costa|
|Canelo v Fielding: Alvarez´s greatest nights|
|Fabregas: Chelsea being unfairly scapegoated over racism allegations|
|Crisis? What crisis? Klopp focuses on defensive solutions for United clash|
|Hope cannot inspire Windies as Bangladesh cruise to series win|
|Benitez picks up Premier League Manager of the Month award|
|Chavez, Marquez and Canelo - Mexico´s greatest multi-weight world champions|
|Bale set to miss Real Madrid v Rayo Vallecano|
|Robben out until January as Bayern look to avoid serious injury|
|Milan avoid UEFA ban in FFP punishments.|
|Mourinho compares Liverpool to ´an amazing house´ but insists trophies matter|
|Brisbane Roar 2 Melbourne Victory 4: Muscat´s men hit A-League summit|
|Bumrah confident second Test is ´in the balance´ after India recovery|
|Isco gesture was for a corner or foul, claims Solari|
|Harris leads Australia into ascendancy on day one|
|ATP announces candidates to host future Finals|
|Ronaldo: Juventus fans refuse to lose to Torino|
|Hero Rivers feared he had cost Chargers in KC|
|Williams would welcome Llorente back to Athletic Bilbao|
|Liverpool v Manchester United: Minding the gap|
|Milan elimination unjust, fumes Leonardo|
|Paul hails ´sick´ Harden after record-breaking display|
|Liverpool v Manchester United: Salah, Mane and Firmino v Rashford, Martial and Lukaku in Opta number|
|Canelo open to GGG trilogy as he chases place in Mexican history|
|The big Friday Premier League quiz|
|Harden posts record fourth 50-point triple-double in win over Lakers|
|Barcelona squad happy with Dembele, says Alba|