There wasn’t much team bonding required for these seven brotherly duos who all shared a passion for soccer - and a pitch.
Frank de Boer is a Dutch soccer manager and former player. De Boer played for Ajax, Barcelona, Galatasaray, Rangers, Al-Rayyan and Al-Shamal. He went on to enjoy a successful stint as manager of Ajax before spells in charge of Inter Milan, Crystal Palace and Atlanta United.
Most recently, De Boer was the manager of the Netherlands national team, for whom he made 112 appearances and scored 13 goals between 1990 and 2004.
Frank de Boer and Ajax
De Boer came through the famed youth academy of Ajax, becoming a regular for the first team in the 1988/89 season. Starting as a left-back and converting to the heart of defence during his time at Ajax, he was part of the team which won the 1991/92 UEFA Cup and the 1994/95 UEFA Champions League.
During his playing career, de Boer was a defender. He started out as a left-back, but then converted into a centre-back, holding down the position within the Netherlands national team.
Frank de Boer and Barcelona
De Boer moved to Barcelona in January 1999 along with his brother, Ronald. Both were reunited with Louis van Gaal, who had managed the 1994/95 UEFA Champions League winning Ajax team.
De Boer played a total of 215 matches for Barcelona, scoring 14 goals. The later years of his career included short stints at Galatasaray, Rangers, Al-Rayyan and Al-Shamal.
Managing in MLS with Atlanta United
In September 2020, De Boer replaced Ronald Koeman as the manager of the Netherlands national team.
Ill-fated stints at Inter Milan and Crystal Palace
After De Boer criticised Jose Mourinho, who had worked with him at Barcelona, Mourinho told reporters: "I read some quotes from the worst manager in the history of the Premier League, Frank de Boer - seven matches, seven defeats, zero goals.
"If he was coached by Frank, he would learn how to lose because he lost every game."
Frank de Boer and the Netherlands
De Boer had previously been an assistant to Bert van Marwijk as the Netherlands finished second at the 2010 FIFA World Cup. However, this did not spare him from heavy media criticism for the Netherlands' poor form.
It quickly unravelled, however, in the round of 16, with Matthijs de Ligt sent off as they lost 2-0 to Czech Republic. Two days later it was announced that Netherlands and De Boer had parted ways.
He later backtracked on that to some degree, saying of his usage of the word 'ridiculous': "It's a hard word if I read that word only. If you see the whole context, I was very clear that I always promote women's soccer."
Frank de Boer's net worth
It is unclear how much De Boer is worth, but Barcelona laid out £22million for his and Ronald de Boer's services as players when acquiring them from Ajax.