Diego Costa insisted Atletico Madrid are capable of defeating anyone with their desire and courage after upstaging Real Madrid in the UEFA Super Cup.
A brace from Costa saw Atletico to a 4-2 extra-time victory against Champions League holders and city rivals Madrid in Tallinn on Wednesday.
Costa scored the fastest ever Super Cup goal after just 49 seconds in sensational fashion midweek before Karim Benzema equalised 26 minutes later and Sergio Ramos' penalty put Madrid ahead with 29 minutes remaining in the Estonian capital.
Europa League champions Atletico, however, were not done as Costa struck again 16 minutes later to force extra time, where Saul Niguez's stunner and Koke's sealer clinched a seventh title for head coach Diego Simeone.
Speaking afterwards, Spain international striker Costa said: "With the desire and the 'cojones' that we have, we can fight against any team.
"It was a victory that we had been looking for a long time, I am very happy."
"They won two finals against us, we wanted to win a European final against them," he continued. "It was very important to get confidence ahead of the season."
Atletico look well-equipped to win their first LaLiga title since 2014, having signed Thomas Lemar, Rodri, Gelson Martins, Nikola Kalinic, Santiago Arias, Jonny and Antonio Adan.
Their biggest off-season success, however, was keeping hold of star forward and World Cup winner Antoine Griezmann amid interest from LaLiga champions Barcelona.
"Atletico have always had an ambitious project, we can get anywhere with work, humility," Costa added. "We can fight with any team, we have signed very strong and I hope we keep growing."
Costa and Madrid captain Ramos were involved in a tense battle throughout the contest in Tallinn – the Spain team-mates putting their international relationship aside.
Neither Costa nor Ramos took a backward step as the pair collided on more than one occasion, but the former played down the rivalry.
"Everybody knows the admiration I have for Ramos, he has shown year after year how good he is," Costa said. "When I came to the national Team he helped me.
"I respect him… but in the field everyone fights. I want to win and what happens inside the field remains in the field."
Goalscorer Koke, meanwhile, added: "It has been a spectacular match. If we fight as a group we get things."
|Erasmus adds five players to Springboks squad|
|Barcelona snub ´hardest decision´ of Griezmann´s career|
|Perez pays tribute to Ronaldo and Zidane|
|Cazorla concedes Arsenal lacked self-belief under Wenger|
|Get King Kong for AJ! Joshua understands critics´ demands|
|Korea change sees Bertens take title in Seoul|
|I love Bilic, but I let him down – Arnautovic|
|He will never fight me! Fury hits out at ´ponderous´ Joshua|
|Azpilicueta convinced Hazard can be ´the best´|
|Wigglesworth´s career in Opta numbers as he breaks Premiership record|
|Ronaldo has nothing to prove, says Allegri|
|Federer shines as Europe hold narrow lead at Laver Cup|
|Astros, Yankees and Indians record dramatic wins|
|Pliskova too strong for Osaka in Tokyo final|
|Kyle Busch comes from behind to win again in Virginia|
|Dybala can play as a striker – Allegri|
|Pochettino never doubts ´special´ Kane|
|NASCAR results at Richmond: Kyle Busch comes from behind to win again in Virginia|
|McIlroy just worried about himself at Tour Championship|
|MLS Review: Atlanta stay clear of Red Bulls|
|Rose reminds everyone Woods has been here before|
|Cronk in doubt for Grand Final due to ´severe´ shoulder injury|
|Timberwolves sign Towns to extension|
|Hearn wants Wilder for Joshua, not ´un-entertaining´ Fury|
|Woods pleased with putting consistency|
|Ballon d´Or not a focus for Asensio|
|Man City star Mendy revels in Joshua triumph|
|Braves clinch first NL East title since 2013|
|I want Wilder, says Joshua|
|Inter must live on the edge to win, says jubilant Spalletti|
|Woods leads by three at Tour Championship|
|Bordeaux end Clermont´s perfect start, Zebo at double in Racing win|
|Lopetegui not worried about Courtois footwork|
|Joshua finds emphatic answer to Povetkin challenge|
|BREAKING NEWS: Brutal Joshua knocks out Povetkin in seventh round|
|Real Madrid can´t win 5-0 every week - Varane|
|Al Ahly 4 Horoya 0 (4-0 agg): Egyptian giants reach CAF Champions League semi-finals|
|Kings upset Warriors, Leinster batter Edinburgh|
|Son committed to Tottenham amid Bayern links|
|Simeone hails Atleti´s best LaLiga display of the season|
|Kovac: Bayern ´dominated´ Schalke in 2-0 win|
|Pochettino unimpressed with Tottenham´s tense finish|
|Campbell gains revenge as Price is halted by injury|
|Tottenham fatigue rumours are a myth, claims Rose|
|Widnes defiant after Super League relegation, Saints outclass Wolves|
|NFL must go back to college to eradicate the tie|
|Real Madrid 1 Espanyol 0: Asensio downs old club to earn narrow win|
|Sampdoria 0 Inter 1: Brozovic wins it late after VAR takes centre stage|
|Rudy takes blame for James goal in Bayern win|
|Tiger charges into four-shot lead|
|Players have given their lives to Burnley - Dyche|
|QPR 0 Norwich City 1: Pukki hits winner as hot streak continues|
|Nuno proud of Wolves character in Man United draw|
|Playing for England my dream, says in-form Maddison|
|Brighton and Hove Albion 1 Tottenham 2: Kane on target as Spurs issue firm response|
|Schalke 0 Bayern Munich 2: James and Lewandowski deliver another win|
|Getafe 0 Atletico Madrid 2: Lemar inspires routine win|
|Championship Review: Monk ruins Leeds´ unbeaten streak, McGinn screamer fails to save Villa|
|Bale benched for Real Madrid-Espanyol|
|Biggar fails to rescue Saints at Bath, Bristol and Wasps win|
|Zaha affected by back injury – Hodgson|
|Mourinho slams Manchester United attitude after Wolves stalemate|
|Herbert holds Portugal Masters advantage|
|Warnock blasts ´elementary´ Cardiff mistakes|
|Shaqiri substitution not easy for Klopp|
|Guardiola hopes for even more to come from Aguero|
|Fellaini accepts United closing gap to Premier League summit will be difficult|
|Klizan to face Thiem in St. Petersburg final, Bachinger shocks Nishikori|
|Klopp: Van Dijk injury not serious|
|Mourinho annoyed by Man Utd´s blunt attack in Wolves draw|