Club Atlético de Madrid was founded on 26 April 1903 as Athletic Club Sucursal de Madrid. They have traditionally worn red and white vertical striped shirts and are known as Los Colchoneros and Los Rojiblancos.

In 1911, the club changed its kit to red and white, influenced this time by Southampton, marking a significant shift in its visual identity.

Aviación Nacional won a match against CA Osasuna in Valencia on 26 November 1939, securing a spot in the Primera División for the 1939–40 season.

In September 1940, Atlético Aviación won the very first Super cup in Spanish football after beating RCD Español in a two-legged game.

Athletic Aviación managed to defend the title and win its second consecutive La Liga in 1941.

On 14 December 1946, the club decided to drop the military association from its name, and shortly after, on 6 January, it settled on its current name of Club Atlético de Madrid.

In 1947, the club changed its name for the final time; it was henceforth known by its current name of Club Atlético de Madrid.

The 50s started off well for Atlético Madrid, as the club won two more La Liga titles under the leadership of the Argentine Helenio Herrera.

Atlético won La Liga again in 1951.

After the departure of the Argentine Helenio Herrera in 1953, the club had to settle for being the third best club in the country for the rest of the decade, behind the untouchable Real Madrid and Barcelona.

Atlético de Madrid won the Copa Stadium in 1962, Spain's oldest National Sport Award.

The European Cup semi-final match against Celtic in 1973, under the management of Juan Carlos Lorenzo, resulted in Atlético de Madrid achieving a goalless away draw but being remembered for their controversial method of winning, which led to three Atlético players being sent off, most of the other players receiving yellow cards, and the opponents being given 51 free kicks.

Shortly after the defeat in the 1974 European Cup Final, Atlético appointed their veteran player Luis Aragonés as coach. This marked the beginning of a successful coaching career for Aragonés at the club.

Bayern Munich's refusal to participate in the Intercontinental Cup led to Atlético's invitation as European Cup runners-up. They won the cup against Independiente of Argentina.

Under the coaching of Luis Aragonés, Atlético achieved success in the Copa del Rey in 1976.

Luis Aragonés led Atlético to win La Liga in 1977, marking another successful period for the club under his coaching.

Frente Atlético is an ultra group of Club Atlético de Madrid, founded in 1982 and at one point had around 2,500 members, making it one of the largest ultra groups in Spanish football.

During his second spell in charge, Aragonés led Atlético to a runners-up finish in La Liga and a winner's medal in the Copa del Rey in 1985. The team received considerable help from Hugo Sánchez, who scored 19 league goals and won the Pichichi. Sánchez also scored twice in the cup final as Atlético beat Athletic Bilbao 2–1.

Under Aragonés' guidance, Atlético reached the European Cup Winners' Cup final in 1986, but unfortunately lost their third successive European final, this time 3–0 to Dynamo Kyiv.

In 1987, controversial politician and businessman Jesús Gil became club president, marking the beginning of a significant era for Atlético de Madrid. His presidency was marked by controversial decisions and heavy spending on expensive signings.

In 1992, Jesús Gil closed down Atlético's youth academy as part of a business restructuring of the club. This decision had significant consequences, including the departure of academy member Raúl, who later achieved worldwide fame with rivals Real Madrid.

In the 1994–95 league campaign, Atlético de Madrid narrowly avoided relegation with a draw on the last day of the season. This led to a managerial change and squad clearance during the summer 1995 transfer window.

In the 1995–96 season, Atlético de Madrid, under the management of Radomir Antić, achieved the much sought-after league title and won the La Liga/Copa del Rey double.

In the 1996–97 season, Atlético de Madrid took part in the UEFA Champions League for the first time, making notable summer transfer signings to strengthen the team.

During the summer of 1998, Arrigo Sacchi replaced Radomir Antić as the manager of Atlético de Madrid, but his tenure was short-lived.

The 1999–2000 season proved disastrous for Atlético de Madrid, with the club facing suspension and poor performance leading to relegation.

In 2000, Jesús Gil's reign as president came to an end due to numerous lawsuits against him and the club's board. The same year, Atlético faced relegation amidst financial issues.

Atlético de Madrid won the Segunda Division in the 2001-02 season.

After spending two seasons in the Segunda División, Atlético de Madrid won the championship in 2002, bringing them back to the Primera División.

King Felipe VI became the Honorary President of Atlético de Madrid in 2003, showing his support and allegiance to the club.

In 2006, Atlético de Madrid signed Portuguese midfielders Costinha and Maniche, as well as Argentine forward Sergio Agüero.

In July 2007, Uruguay international and former European Golden Boot and Pichichi winner Diego Forlán joined Atlético de Madrid for roughly €21 million from Villarreal.

The 2007–08 season proved to be the most successful season for Atlético de Madrid in the past decade. The team reached the round of 32 in the UEFA Cup, the quarter-final round of the Copa del Rey, and finished the league season in fourth place, qualifying for the UEFA Champions League for the first time since the 1996–97 season.

The UEFA Europa League in 2009-10 was won by a football club in a European competition.

The year when Reyes played in the final of the 2010 European Super Cup, a notable event in Atlético de Madrid's history.

The UEFA Europa League in 2011-12 was won by a football club in a European competition.

Atlético won their second Europa League title in three years by defeating Athletic Bilbao 3-0 in the final, with two goals from Radamel Falcao and one from Diego.

Atlético won the 2012 UEFA Super Cup against Chelsea with a 4-1 victory, including a hat-trick by Falcao in the first half.

Atlético beat Real Madrid 2-1 in the Copa del Rey Final, ending a 14-year winless streak in the Madrid derby.

Atlético secured the La Liga title by drawing 1-1 against Barcelona at the Camp Nou, their first title since 1996.

Atlético faced city rivals Real Madrid in their first Champions League final since 1974, ultimately losing 4-1 after extra time.

In 2016, Atlético de Madrid bought the City-owned Olympic Stadium for €30.4 million.

Atlético played their last home game at the Vicente Calderón Stadium before moving to their new home, the refurbished Wanda Metropolitano.

Atlético won their third Europa League title by beating Marseille 3-0 in the final, and also won the UEFA Super Cup after beating Real Madrid 4–2.

Atlético secured the La Liga title with a 2–1 win against Valladolid, marking their first title in seven years.

Simeone has mentioned that Inter is one of the best teams in Europe.

The Cívitas Metropolitano has set a new home attendance record.

The upcoming rival for the UCL quarter-final tie will be revealed on Friday.