The legendary No. 6 has announced his retirement from football, giving himself the opportunity to leave before his powers truly wane.

There was a funny sequence of events that happened multiple times every game when Sergio Busquets first came to MLS. He would do Busquets thing, dropping from midfield to receive the ball deep. Soccer fans know the movements. The center backs split, Busquets lumbers back towards his own goal, just in time for the pass to come. Busquets receives on the half turn, swivels those jangly legs, and with a pivot of the hips shuffles and turns his body forward. It was the basis of what made him so excellent at Barcelona – the model of a modern defensive midfielder. 

The challenge of doing it in La Liga, of course, was the on ball pressure. Teams had figured out that in order to stifle, cutting off the outlet to Busquets might be a good start. But Busquets adjusted all the same. The pass would come. A defender would bite. Busquets would shrug them off and start an attacking move. A lot of the time – during Barca's heyday – the ball would soon end up in the back of the opponents' net.

And so when he came to MLS, Busquets expected much of the same. In his first start against Atlanta United in the Leagues Cup, Busquets went about that familiar routine: make the run, receive the pass, shrug off the defender. But as he turned in one smooth motion, almost expecting contact, none appeared. Busquets found himself remarkably open. That singular moment established the pattern of Busquets' MLS tenure. For Barcelona and his national team, he was the perfect guy to play through pressure and slow the game down when everything seemed so frantic – with and without the ball.

For Inter Miami, and in MLS, Busquets was charged with a different role: create, give the ball to Messi, and plug gaps. Soon it will be all over. Busquets announced Thursday night that he will retire from professional soccer at the end of the season. And even if Busquets isn't ending his career playing the same gorgeous tiki-taka football in the way he started it, this feels like the right time to call it a day. 

Get the MLS Season Pass today!Stream games nowGetty ImagesThe glue that held it all together

You've probably heard the Pep Guardiola quote by now. Except, Pep Guardiola never said it. Vincente Del Bosque, then Spain's manager, uttered the words that became part of the Busquets lore: "If you watch the game, you don’t see Busquets. But if you watch Busquets, you see the whole game.”

Those words became the cop-out for describing the defensive midfielder, a part of soccer canon. Football is more complex than 19-word platitudes. But this one has stood the test of time. Del Bosque is right, in some ways. The broader point, the bit that sticks, is that Busquets isn't always the most eye-catching footballer. But everything runs through him. For Spain, you were probably watching Xavi or Andres Iniesta. For Barcelona, you were probably watching Messi, or Xavi or Iniesta (an all-time team, by the way). For Miami, you were, once again, probably watching Messi. 

But Busquets was the glue that held it all together. He was, in many ways, the early embodiment of Pep Guardiola's footballing philosophy. Guardiola was an excellent defensive midfielder in his own right, and knew that when he took charge of Barca that he needed a No. 6 to pace his side. The story of his discovery is a bit apocryphal. Supposedly, Guardiola happened to be at a Barcelona reserve game one day, when then-youth coach Tito Vilanova poked fun at a gangly center back for being far too slow. Guardiola was awestruck, though, by his ability to play under pressure. So he called him up to Barca's senior side, made him a defensive midfielder. And the rest is history. 

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The ensuing years were, effectively, a masterclass of what a modern midfield could look like. Guardiola, as Barcelona manager, changed the way that many viewed football. It was no secret that he drew inspiration from the total football of Ajax and Holland. But his version of that approach was a little different. Guardiola wanted control of all three thirds of the pitch. Simplistically, the best way to do that was by having the ball and going forward as much as possible. You can't concede if your opponent never has possession. It's called Tiki-Taka. And of course, that's what made headlines. After all, this was the sexy stuff: Xavi, Iniesta, Busi – the perfect midfield triangle for club and country. You couldn't get the ball off them. 

But what was more important for Busquets, perhaps, was the role he played when opponents have the ball. Guardiola, to this day, has a fundamental fear of being counterattacked. In his vision of football, transitions are deadly. Defensive shape is vital, and can be coached. But transitions are when chaos ensues. You really can't prepare for an opponent might hit you on the break. Well, Busquets went part of the way to solving that. Guardiola decided as Barca manager that the best solution to losing the ball was to win it back as soon as possible. 

If his team couldn't – whether that be due to defensive inefficiencies or the opponent just being good in possession – he would ask them to drop. And Busquets was the architect of that. He knew when to step and cut a passing lane. He knew when to foul at the right time and gleefully take some of the best yellow cards you will see. This is where those defensive instincts came in. Busquets' reading of the game was unparalleled.

Getty Images Results, influence, and remarkable success

The results were accordingly immense. Barca, under Guardiola, were the best team on the planet. And it wasn't particularly close. They won a treble in his first season in charge. He won the La Liga title three times in a row. His crowning achievement, perhaps, was the 2010-11 Champions League final win over Man United, a game that left even the great Sir Alex Ferguson in awe. And Spain weren't bad, either. They won the World Cup in 2010 and the European Championship in 2012, Busquets anchored the side in both triumphs. 

At a club level, Guardiola kept innovating, toying with different combinations. Messi played on the wing, and then as a false nine. He experimented with Xavi playing a little higher up and Iniesta dropping deep. He got rid of Zlatan Ibrahimovic because he didn't fit the system and famously hooked Thierry Henry when he didn't follow instructions, despite the Frenchman having scored two wonderful goals in the game. But for every change, Busquets was the one constant, anchoring the team. 

Accordingly, everyone decided to try to find the next version of the player. It gave birth to a whole generation of finely tuned defensive midfielders, all trying to do the same thing. There is a thread to be drawn from Busquets, to N'Golo Kante, to Casemiro, to Fabinho, to Rodri. None, of course, is quite the same. But imitation was the purest form of flattery. 

"He was a player who changed the way of thinking of the central midfielder," Javier Mascherano said in a media availability Friday morning. "There would be no Rodri without Busi. That's my opinion. And well, he has created a school." 

GettyThe final days at Barca

But as Busquets aged, his athletic deficiencies became more pronounced. Luis Enrique figured out how to use him effectively from 2014-2016 while at Barcelona. After that, though, a series of managers failed to protect his gangly legs. Barca were no longer as effective on the ball and too disorganized without it. There were calls from some in the Barca fanbase to move Busquets on. Perhaps his time was done. 

There would be one last swan song, though. Xavi, his old teammate, figured out a formula to get the last juices of football out of him at an elite level during Barca's title winning season in 2023. Busquets could no longer cover so much ground. But Frenkie De Jong could. So, Xavi set up a box midfield and played De Jong alongside Busquets. 

The result was a fine last season in Catalonia. De Jong put out fires here, there and everywhere. Busquets won tackles and shuffled the ball around. He left Barcelona with a La Liga winner's medal around his neck. It was a perfect farewell. Then it was off to South Beach.