Serie A Matchday 21: When Dreams Burst and Miracles Happen

Matchday 21 Overview: Pure Fortune and Misfortune

What a crazy matchday in Serie A! While some teams squander their chances like confetti and still celebrate, others stare at the scoreboard in disbelief – despite having done everything right. Matchday 21 was a perfect example of why football is sometimes heartless and sometimes merciful: Three teams collected points they didn't deserve according to Expected Points, while three others came away empty-handed despite strong performances.

Match of the Week: Cagliari Surprise Juventus with 1-0 Victory

The unthinkable happened at Sardegna Arena: Cagliari Calcio defeated Juventus FC 1-0 – despite the visitors posting an xG of 2.52 against a modest 0.35 from the hosts. An xG difference of 2.17 in favour of the Old Lady, but the three points traveled to Sardinia. This is Serie A in pure form: Juventus dominated the match, created chances on the assembly line, and were thwarted by an inspired goalkeeper or the famous Italian "catenaccio" gene of the Cagliaritani. Sometimes it's not the statistics that decide, but a magical moment – or a portion of luck at the right time.

Lucky Charm of the Matchday: Trio of Fortune

Three teams shared the role of biggest lucky charm: ACF Fiorentina won in Bologna 2-1 (xG: 1.14 vs 1.85), Cagliari Calcio beat Juventus 1-0 (xG: 0.35 vs 2.52) and SSC Napoli defeated US Sassuolo 1-0 (xG: 1.16 vs 1.86). All three collected three points despite deserving only half a point according to Expected Points – a delta of +2.5 points. Fiorentina did it particularly cleverly: At Stadio Renato Dall'Ara they let Bologna FC dictate the game, waited for their moments and struck ice-cold. That's called efficiency – or simply the luck of the diligent.

xG Victims: The Unlucky Trio

On the other side of the luck medal stand three teams who came away empty-handed despite decent performances: US Sassuolo, Juventus FC and Bologna FC all suffered a -2.5 point difference. Sassuolo had it particularly bitter: 1.86 xG against Napoli, but zero points. The Neroverdi played the better football at times at Stadio San Paolo, but failed in their chance conversion and faced a Napoli side that made the most of their few opportunities. This is what bad luck looks like in numbers – 2.5 Expected Points, but the account remains empty.

The Honest Table: When Mathematics Speaks

A look at the honest table reveals some interesting shifts: AC Milan would drop from 2nd place to 6th – 14.5 more points than deserved is a considerable difference. SSC Napoli (4th instead of 7th) and US Sassuolo (9th instead of 19th!) also benefit considerably from the luck factor.

On the unlucky side, ACF Fiorentina with -9 points looks particularly poor: Instead of 16th place, they would be in 10th. AC Pisa (-11.5) and Hellas Verona FC (-10.5) have also deserved significantly more than the table shows. These teams are playing better football than their position suggests – a comfort for all fans, but unfortunately not one that brings points.

Inter Milan remains table leader both officially and in the xP table – with 5 bonus points they can't complain, even though the Nerazzurri have basically earned their top position.

Outlook: Luck is a Fickle Thing

Matchday 21 has shown that anything is still possible in Serie A. Teams like Pisa and Verona, who are at the very bottom of the table, are actually playing football worthy of mid-table – that gives hope for the second half of the season. Conversely, teams like Milan and Napoli shouldn't rely too heavily on their luck so far.

The next matchday will show whether Expected Goals values prevail in the long term or whether Italian football karma continues to write its own laws. One thing is certain: In a league where Cagliari beats Juventus and Pisa are bottom of the table despite good performances, every matchday is a new chapter of an unpredictable story.

*The honest table is based on Expected Goals (xG) and Expected Points (xP) – it shows how the league would look if only performance and not luck decided.*