We all remember the most famous football elevens, including the rock-solid centre-back pairings, right and left-sided interchanging wingers and deadly forward partnerships, but there are plenty of duos you could easily forget were teammates.
It's hard not to remember Daniel Sturridge and Luis Suarez's telepathic chemistry or Alan Shearer and Les Ferdinand during Newcastle's 'entertainers' era, but these notorious combinations are not the only interesting ones.
Some of these players have since developed a fierce rivalry, others have moved into punditry together and the rest make you wonder how both players were in the same dressing room with a huge gulf in quality between the two.
If you can remember every one of this select bunch then you deserve a solid handshake and a Ballon d'Or award for football knowledge.
Here are some football combos you may have forgotten were teammates.
Ronaldo and Pique (Manchester United, 2003)
Gerard Pique was plucked from the famous La Masia academy in 2004 and spent four years at Old Trafford before returning to Barcelona.
Prior to his signature, Cristiano Ronaldo signed for the Red Devils in 2003 from Sporting CP and the pair were both taken under the wing of Sir Alex Ferguson.
Due to Piqué's inability to break into the first team, they didn't play a lot of football together and while Ronaldo flourished during his 291 appearances for the club, Piqué left in 2008.
The Portuguese superstar departed one year later and signed for Real Madrid. After the pair left England, they became huge rivals as Madrid and Barça competed for the Spanish title and Champions League honours. Ronaldo decided to continue his career in Italy with Serie A giants Juventus in 2018.
Guardiola and Totti (Roma 2002)
Pep Guardiola signed for Roma in 2002 and joined up with club veteran Francesco Totti.
After he left Barcelona he moved to Brescia – where he played with Roberto Baggio – before moving to Rome but left after just six appearances.
Totti was the polar opposite as he spent his entire career playing at the Giallorossi and although only winning one domestic title, he played over 750 games for the club, scoring over 300 goals.
It will be interesting to see if Totti performs as well as Guardiola should he one day try his hand at management.
Rakitic, Ozil and Neuer (Schalke 04, 2007)
What a connection these three would have been if they had all stayed at Schalke 04.
Ivan Rakitić spent four years at the German club and established himself as a first-class midfielder alongside Mesut Özil, who progressed through the youth academy and played for the first team between 2006 and 2008.
Manuel Neuer will have overseen the whole transition of talented players come and go during his time at Schalke after spending his entire career there before moving to Bayern Munich in 2011.
Ronaldinho and Okocha (PSG, 2001)
After being noticed for his outrageous skills at Gremio, Ronaldinho moved to Europe in 2001 and signed for Paris Saint-Germain.
He joined up with Jay-Jay Okocha – a player who possessed many of the same tricks and skills the Brazilian had in his locker — who played for the French side for three seasons. Imagine the skill-moves that were going on in the dressing room? Woof.
Despite both players being blessed with jaw-dropping control and dribbling skills, one of them moved to Barcelona while the other signed for Bolton Wanderers – we'll let you tell us which.
Kroos and Vidal (Leverkusen 2009)
Toni Kroos and Arturo Vidal both played together at Bayer Leverkusen before moving onto bigger things.
During the 2009/10 season, the pair combined – with Sami Hyypia at centre back – and finished fourth in the Bundesliga. Kroos, who was on loan at the club, moved to back to Bayern Munich at the end of the season before earning a move to Real Madrid in 2014, while Vidal sealed a big-money move to Juventus. The Chilean went on to play in Munich at Kroos' former club but agreed to sign for Los Blancos' fierce La Liga rivals, Barcelona, in 2018.
Vardy and Kane (Leicester, 2012)
Two of the Premier League's best strikers in recent seasons, Harry Kane and Jamie Vardy performed above all expectations for Leicester and Tottenham in 2015-16, but did you know the pair played together during the 2012/13 campaign when Kane spent time on loan at the King Power Stadium?
Kane was a shadow of the first-rate player he so quickly became after leaving Leicester and only managed two goals in 15 appearances for the club.
Meanwhile, Vardy spearheaded the club's return to the Premier League and scored 16 goals as Leicester finished first in the Championship. A Premier League title followed in 2016.
Of course, the pair have since shared the pitch on a number of occasions with England.
Neymar and Felipe Anderson (Santos, 2009)
Neymar is one of the many talents that has come through the Santos academy and sometimes it's easy to forget about the players who helped to get him noticed on his way to football stardom.
Talented midfielder Felipe Anderson was one of those players and linked up with the Barcelona man before the pair left for Europe.
Anderson made 68 appearances for the Brazilian side and scored seven goals. He moved to Lazio in 2013 – the same year Neymar signed for Barça – and went on to play a starring role in Serie A before moving to West Ham in 2018. Neymar, on the other hand, has turned into one of the best footballers in the world and is now the most expensive footballer ever having completed a €222m (£198m) switch to Paris Saint-Germain in 2017.
Pennant and Herrera (Real Zaragoza, 2009)
After trying his luck with seven English clubs, Jermaine Pennant decided that it was time to give Spain a go and signed for Real Zaragoza in 2009.
He was joined by a youthful playmaker in Ander Herrera, who had just established himself as a first-team player after developing through the Spanish side's youth academy.
Pennant went on to play 26 times for Zaragoza but only managed two assists and no goals and swiftly moved back to the English league, signing for Stoke in 2010 and eventually joining non-league outfit Billericay Town in the summer of 2017 for a trial period. He is now unattached and recently spent time in the Celebrity Big Brother house…
Meanwhile, Herrera impressed during his time at the club and signed for Athletic Bilbao, where his midfield performances prompted Manchester United to pay big money to bring him to Old Trafford.
The Spaniard made 189 appearances for United, scoring 20 goals and winning the League Cup, the FA Cup and the Europa League, helping him to pick up two caps for Spain, before moving to PSG last summer.
Beckham and Moyes (Preston, 1995)
Yes, amazingly, Moysie and Becks actually played together at Preston during the 1994–95 season while the young midfielder was on loan from Manchester United – who Moyes would later manage.
In his second of two goals for Preston – the first coming directly from a corner on his debut – Beckham scored what would become a trademark freekick against Fulham.
Speaking to FourFourTwo about the moment, Lancashire Evening Post photographer Kevin McGuinness said: “It was the classic Beckham free-kick, over the wall. I couldn't believe what I was seeing. David Moyes nearly squashed him in the celebration.”
Dybala and Lafferty (Palermo, 2013-14)
While many of Palermo's best players departed following relegation from Serie A at the end of the 2012-13 season, the teenage Argentine striker Paulo Dybala stayed put, following a tough debut campaign that yielded only three league goals from 27 matches.
In a bid to get the talented forward firing, Palermo signed Northern Ireland's Kyle Lafferty, who had worked with their ex-head coach Gennaro Gattuso at Swiss club FC Sion the prior season.
The unlikely duo combined well, with Lafferty outscoring Dybala 11 goals to five, to help fire the Sicilian club back into Serie A, although he was sold to Norwich shortly afterwards after being branded an “out of control womaniser” by Gattuso's successor Giuseppe Iachini, according to Football Italia.
Since that campaign, the two players club careers have headed in vastly different paths. Lafferty moved to League One club Sunderland, while Dybala has dovetailed with Cristiano Ronaldo at Juventus. Lafferty will probably tell you he taught Dybala everything he knows…
Dier and Rojo (Sporting Lisbon, 2012-14)
Dier moved to Portugal from England when he was just seven years old and he was enrolled in the Sporting academy aged 10 before signing professional terms in 2010.
He progressed to the first-team at the start of the 2012-13 season at the same time Marcos Rojo joined the club, following a disappointing year in Russian football with Spartak Moscow.
The duo performed at the heart of Sporting's defence on occasion that season, before going their separate ways in the same summer, joining their respective clubs in 2014.
Dier has made 235 appearances for Spurs, scoring 11 goals, while Marcos Rojo has made 122 appearances for United, scoring twice, although he now finds himself on loan with Estudiantes. The Argentinian has won the FA Cup, the League Cup and the Europa League, while Dier has won nothing.
Bolt and McCormack (Central Coast Mariners, 2018)
Do not adjust your screen, do not book an emergency appointment at Specsavers.
Yes, you read that correctly, Usain Bolt played up-front for Australian side Central Coast Mariners in October 2018, with Ross McCormack playing just behind him.
While McCormack – now a free agent having been released by Aston Villa – scoring a goal in the game against Macarthur South West United is no real surprise, the fact that Bolt managed to grab two goals is quite remarkable.
The Jamaican sprinter didn't let it go to his head though, with McCormack stating (via Birmingham Mail): “The best thing about Usain Bolt is he's so humble. He's fitted in well with the lads.”
However, Bolt wasn't offered a professional contract by the Mariners in the end