The unbeaten runs are dead. Buried in Seville on a Friday night and in north London two days later, two of European football's most-watched projects got their first dose of cold, hard reality.

José Mourinho's Real Madrid was stunned by Real Betis. Xabi Alonso's Chelsea was just slightly edged at the Emirates in an absolute thriller. Two giants. Two defeats. One jaw-dropping weekend.

What Happened to Mourinho's Real Madrid?

Madrid did everything but score. Read that again. Everything. But. Score.

At the Estadio La Cartuja de Sevilla, Los Blancos accumulated a staggering 3.16 expected goals from 20 attempts, numbers that would comfortably win most La Liga games, yet left Spain's south empty-handed, beaten 1-0 by Real Betis.

Vinicius struck the post from inside the six-yard box. Mbappé, who single-handedly generated 1.78 xG, was twice denied by defenders on the line. Huijsen headed the crossbar.

Espí's acrobatic 87th-minute equaliser was ruled out by VAR. Then, in the cruelest finale, Álvaro Vallés saved Mbappé's stoppage-time penalty and celebrated in the Frenchman's face.

The architect of Madrid's destruction? Héctor Bellerín. The veteran full-back won eight duels and six of seven tackles against Vinicius. Arda Güler created seven chances for Madrid. Betis created six as a team. Football is a cruel, magnificent sport.

What Happened to Alonso's Chelsea?

If Betis-Madrid was cruel, Arsenal vs Chelsea was pure box-office drama from the first second to the last.

Chelsea drew first blood inside 77 seconds, with Morgan Rogers, a former Arsenal transfer target, turning the knife into his almost-employers with a stunning volley on his first touch.

The Emirates was stunned into silence. But Kai Havertz, scoring against his former club, levelled in the 25th minute. Nine shots on target in those opening 25 minutes alone, a Premier League record in the Opta era.

Chelsea hit the post, had chances, and pushed furiously for a winner. Instead, Ødegaard arrived to lash home the decisive goal in the 50th minute. 

In the 89th, substitute Estêvão's curling effort looked destined for the top corner until David Raya produced a heroic save that sealed Arsenal's 2-1 win and extinguished Chelsea's perfect start.

Should Real Madrid Fans Panic?

No. But they should be uncomfortable, and that is exactly how Mourinho wants it.

Mbappé alone fashioned enough chances to win three separate games. When those start converting, and they will, Madrid will be devastating.

The real concern is not the defeat itself, but whether Mourinho tightens the fine margins that killed them in Seville. One missed penalty, and one VAR call away from a draw at worst. Panic? No. Sharpen up? Absolutely.

Should Chelsea Fans Panic?

The Blues are the first team in Premier League history to score inside the opening five minutes of three consecutive games at the start of a season. 

Losing 2-1 away at the reigning champions, having led and hit the post, is not a disaster; it is a reality check delivered by the highest possible standard. 

The concern is whether Chelsea's defensive structure can hold when the press is bypassed. Alonso will have spotted it. The corrections will come. Write this side off at your peril.

The Bigger Picture and the Responses That Silenced Every Doubter

What separates great sides from pretenders is the response, and both clubs delivered answers so emphatic they rendered the panic merchants speechless.

Mourinho's Madrid returned to the Bernabéu and beat Inter Milan 2-1 in their Champions League opener. Mbappé, the same man who missed that Seville penalty, was on the scoresheet inside 14 minutes.

The beast had been poked, not slain. Chelsea's reply carried a different kind of drama: trailing 0-2 to Leeds United at Stamford Bridge, Alonso's side scored six second-half goals to win 6-3. Character, talent, and chaos, all in one breathless evening.

Should fans have panicked? The results are in. These are not sides defined by a single bad result. These are projects with steel in their spine and enough quality to make any opponent regret drawing first blood.

Buckle up. This season has only just begun.

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