Club loyalty is the basis of our greatest passion for sport - players come and go, the club is forever. The most famous clubs, their traditions, rivalries and the making of club champions.
Buoyed by a passionate fanbase, the Seattle Sounders are making their mark in the United States. The rivalry between Lyon and Saint-Étienne has a derby feel unique in French football. And the legends that came before Lionel Messi in Barcelona's famed number 10.
These days it's no surprise to see Villarreal in European football, but for a small-town club that only made the top flight in the late 90s, their rise is incredible. Cristiano Ronaldo's move to Real Madrid saw him improve on his Ballon d'Or-winning best. And European Cup legends take their place in Liverpool's Ultimate XI.
São Paulo FC can boast the best record in the era of the Brazilian championship, Barcelona took a risk on Luis Suárez but turned out to be the perfect club for his talents, and Manchester United's treble winners of 1999 take their place as a Classic Team.
Tottenham Hotspur are building for the future with a view to restoring their glorious position of days past. Hertha BSC have endured a difficult history in Berlin but have returned European football to the German capital. And some of the all-time greats feature in Barcelona's Ultimate XI.
Atlético Madrid have emerged in the 2010s to challenge Real Madrid and make the Madrid Derby worthy of the name. Feyenoord Rotterdam had to modernise to prevent being left behind in Dutch football. And Bayern Munich's Thomas Müller is the man for the big-game situations.
Against a backdrop of politics and conflict, The Club can be a place of comfort. Dynamo Kyiv has given hope and inspiration to fans and players alike. Plus, the press conference wisdom of Arséne Wenger, the underappreciated goalscoring feats of Gonzalo Higuaín and the two sides of Pierre-Emerick Aubameyang.
Distinctive colours, controversial owner, iconic stadium and a glorious past, AC Milan is one of the powers of Clubland. Liverpool and Everton have a bitter rivalry on the pitch but a friendly respect off it. Plus José Mourinho has done everything as a manager ... except stick around.
They say fairytales don't come true ... but they also said Leicester could never win an EPL title. And while miracles do happen, so do curses. The curse of Béla Guttmann has haunted Benfica. Plus Rangers Ultimate XI, controversial transfers and the rise of Bayern winger Douglas Costa.
There's a sting in the tale of Sevilla's Europa League record. Eden Hazard's poor season during Chelsea's title defence only served to illustrate his importance. The rivalry between Barcelona and Bayern Munich in Champions League is strong. Plus the Classic Team of Juventus and three Dynamic Duos.
One of the powerhouse clubs of world football, Manchester United has known tragedy and triumph like few other sporting bodies. And their history has been shaped by two great managers. In Italy, Francesco Totti is a giant of the game, an enduring icon at AS Roma. And we profile the club shaking up Bundesliga like no other
Real Madrid aren't just Europe's most successful, they are true giants of the world game. Arturo Vidal's performances in the midfield have been key to his teams' success wherever he's gone. Guus Hiddink has been all around the world but for Chelsea fans he's Mr Fix It. And AC Milan's back-to-back European champions of the 80s make up a Clubland Classic Team.
The iconic Yellow Wall is an inextricable part of Borussia Dortmund's folklore. Defensive rock Diego Godin is central to one of Atlético Madrid's greatest eras. A look at some of the players who are legends at more than one club. And Pelé's in, but who else joins him in Santos' Ultimate XI?
The action in the English capital is never more fierce than when Arsenal meet Tottenham Hotspur in the North London Derby. The club of di Stefano and Crespo, River Plate sealed their return to the top with their third Copa Libertadores. And eighteen months with Wolfsburg turned Kevin de Bruyne from a Chelsea castout into a Manchester City megastar.
Olympique de Marseille have a fanbase as passionate as any in the game. Barcelona's dilemma when their South American stars were called up for two international tournaments in one summer. The versatile Philipp Lahm is a Bayern Munich Club Icon. And Érik Lamela showed that patience is a virtue for new arrivals in the Premier League.
Shakhtar Donetsk thrill with Brazilian flair despite having been forced away from their home. When Manchester City were keen buyers and Arsenal needed to raise money, several stars made the same journey. And Carlo Ancelotti may be one of the game's best managers but it hasn't prevented him from some harsh sackings.
Manchester United's Class of '92 saw six schoolboys become club legends. Spartak Moscow's long wait for a new stadium is over and could signal a return to their glory days. And Barcelona's greatest era has had a sizeable contribution from Andrés Iniesta.
Fiorentina are the pride of Florence, but the city’s fans almost lost their club. Marco Reus was rejected by his boyhood club Borussia Dortmund, but jumped at the chance for a return. And Ajax, Feyenoord and PSV are locked in a three-way struggle for supremacy.
Paris Saint-Germain's destiny was changed when they were purchased by Qatar Sports Investments. Roberto Mancini has managed at some of the world's most famous clubs. And a look at the greats of Stamford Bridge as we reveal Chelsea's Ultimate XI.
Juventus' rich history has made them the girlfriend of Italy, but football families can extend around the world. While friendly neighbours have turned fierce rivals with Manchester United and Liverpool.
Arsenal is a top gun of English football, with more FA Cups and the longest run in the first division than any other club. Plus the story of Cristiano Ronaldo's spectacular delivery of La Decima to Real Madrid. And we name Bayern Munich's greatest 11.