Carles Puyol paid tribute to former Barcelona and Spain team-mate Gerard Pique, stating "few have defended the Barca shirt like you" after the centre-back announced he is to retire.

Pique will call time on his glittering playing career after Saturday's LaLiga clash with Almeria at Camp Nou, with his envious list of honours including eight domestic titles and three Champions Leagues crowns.

He endured a somewhat sour ending to his lengthy association with the Blaugrana, though, after falling down the pecking order under Xavi, while he was booed by home fans during the recent win over Villarreal.

Puyol partnered Pique in the heart of defence during one of the most successful periods in the club's history, including the treble-winning season of 2008-09, as well as Spain's World Cup glory in 2010.

The former Barca captain wrote on Twitter: "Thank you for everything, Geri. I am in shock. Many have been unfair to you, few have defended the Barca shirt like you.

"I can always say that I played alongside you, it was a privilege. I love you friend."

Pique has racked up a whopping 615 appearances for Barcelona across all competitions, with his tally only bettered by Lionel Messi (778), Xavi (767), Sergio Busquets (694) and Andres Iniesta (674).

The World Cup and European Championship winner also earned 102 international caps, making him one of just 13 players to reach triple figures for Spain.

Carles Puyol has apologised for making a "clumsy joke" in response to a tweet from Iker Casillas' account on Sunday, after it appeared the former goalkeeper had come out as gay.

A post attributed to Real Madrid and Spain great Casillas read: "I hope you respect me: I'm gay."

Although the message was widely shared on social media, suspicions over its validity or seriousness emerged when Puyol replied to say it was time for the duo to "tell our story", followed by kissing and love-heart emojis.

Spanish media reports subsequently suggested Casillas' original message was an ironic response to rumours concerning a potential relationship with actress Alejandra Onieva.

Casillas has since claimed his account was hacked and apologised for offence caused, and former Barcelona captain Puyol has acknowledged his response was misguided.

"I have made a mistake. Sorry for a clumsy joke with no bad intentions and [which was] totally out of place," Puyol wrote on Twitter.

"I understand that it may have hurt sensitivities. All my respect and support for the LGTBIQA+ community."

Both players have been heavily criticised for what many believe to be an ill-judged joke, with Adelaide United player Josh Cavallo – who is regarded as the first openly gay professional male footballer – accusing the duo of being "disrespectful" with their messages.

Lionel Messi will have the option to bring his long-standing association with Barcelona to an end in a matter of hours.

The 34-year-old's Camp Nou contract is set to expire on July 1, leaving him free to move on from the club where he has spent the entirety of his 17-year professional career thus far.

Fortunately for Barca, that outcome looks unlikely, with recent reports suggesting that the Argentina great is on the verge of agreeing fresh terms.

Should Messi put pen to paper on that extension, it will increase the possibility of him joining the ranks of players who spent their whole careers at just one club. 

Here, we take a look at five of football's most celebrated one-club men.

Paolo Maldini (AC Milan)

Indisputably one of the greatest defenders of all-time, Maldini made his Milan debut as a 16-year-old in 1985 and spent the next quarter of a century at San Siro, winning seven Serie A titles and five Champions Leagues.

Ryan Giggs (Manchester United)

Like Maldini, Giggs progressed from prodigious young talent to distinguished elder statesman as he represented United from 1990 to 2014. Two Champions Leagues and 13 Premier League titles sit among an astonishing 34 honours amassed by Giggs across 963 senior United appearances.

Francesco Totti (Roma)

Totti bid an emotional farewell to Roma at the end of the 2016-17 campaign after 786 competitive appearances and 307 goals – matching Maldini's record of appearing in 25 Serie A seasons.

Carles Puyol (Barcelona)

A long-time team-mate of Messi's and the captain of Pep Guardiola's mesmeric treble winners of 2008-09, Puyol won six LaLiga titles and three Champions Leagues. With 593 appearances for Barcelona to his name, the defender sits fifth on the club's all-time list behind Sergio Busquets, Andres Iniesta, Xavi, and the outright leader Messi on 778.

Matthew Le Tissier (Southampton)

A mercurial forward with a knack for scoring improbably audacious goals, Le Tissier was regularly linked with the leading lights of English football during his 1990s heyday. He remained loyal to boyhood club Southampton to cement icon status on the south coast, although a mere eight appearances for England provides a talking point about what might have been possible had he not resisted offers from bigger clubs.