Frank de Boer

De Boer grew up in Grootebroek and started playing football with his brother Ronald at local club De Zouaven, where his father Kees was their coach.

Ajax

De Boer began his career as a left-back at Ajax before switching to centre-back, a position he made his own for many years in the national team. He won both the 1991–92 UEFA Cup and 1994–95 UEFA Champions League while at Ajax, in addition to five Eredivisie titles and two KNVB Cups. However, after signing a six-year contract extension with Ajax for the 1998–99 season, he and his twin brother Ronald took successful legal action to have it voided. Ajax had a verbal agreement that if a lucrative offer for one brother came by, he would be released provided the other stayed. Ajax, however, apparently backed down on that agreement after floating the club on the stock market and pledging to shareholders that it would hold both of the De Boers and build around them a team to recapture the Champions League.

Barcelona

In January 1999, Frank and Ronald de Boer signed for Spanish La Liga club Barcelona for £22 million, joining their former Ajax manager Louis van Gaal at the Camp Nou. After winning the 1998–99 La Liga title, they were unable to repeat their earlier triumphs. In 2000, Van Gaal was sacked by Barcelona and Frank suffered the ignominy of testing positive for the banned substance nandrolone a year later. He was suspended but he was reinstated after a successful appeal.

Later career

De Boer…

Having represented his national team 112 times, he was the most capped player in the history of the Netherlands national team, until Edwin van der Sar surpassed him. De Boer made his debut for the Netherlands in September 1990 against Italy. De Boer also played for the Netherlands in the 1994 and 1998 FIFA World Cups, and the 1992, 2000 and 2004 UEFA European Championships; he missed UEFA Euro 1996 due to an injury. He is well-remembered for the arching 60-yard pass which allowed Dennis Bergkamp to score the last-minute goal that eliminated Argentina in the quarter-finals of the 1998 World Cup. During Euro 2000, hosted in his home country and Belgium, De Boer reached another semi-final with the Dutch team. De Boer missed an important penalty kick in the first half of the semi-finals against 10-man Italy and another in the penalty shootout, which led to the Netherlands' elimination from the tournament. On 29 March 2003, in a home match against Czech Republic, De Boer became the first Dutch male footballer to gain 100 caps. He ended his international career after an injury forced him to be replaced in a quarter-final match with Sweden at Euro 2004. The injury ruled him out from the semi-final match against Portugal, which the Netherlands lost 2–1.

A left-footed defender, De Boer's technical attributes included ball distribution from the defensive line, long-range passing, and set-piece taking, specifically free kicks. While noted for a lack of pace, his style of play relied on anticipation and positional awareness. Versatile in defensive roles, he played as a left-back, center-back, and sweeper.

In 2007, De Boer took up a coaching role at his former club Ajax where he was in charge of the club's youth sector. During the 2010 World Cup, he was the assistant of the Netherlands national football team to manager Bert van Marwijk, together with retired player Phillip Cocu. The Dutch team reached the final of the tournament, losing to Spain.

Ajax

On 6 December 2010, after the resignation of Martin Jol, De Boer was appointed caretaker manager of Ajax until the winter break. His first game in charge was a Champions League match against Milan at the San Siro, a match Ajax won 2–0 through goals from Demy de Zeeuw and Toby Alderweireld. De Boer then went on to help Ajax become champions of the Eredivisie for the 2010–11 season in a 3–1 home victory over Twente, the champions of the previous year, on the final matchday, making the first year of his professional coaching career a golden one. "I couldn't have wished for a more beautiful birthday present", said De Boer, as the club's 30th championship was won on his 41st birthday. In two-and-a-half years at the helm of Ajax, De Boer won three championships, making eight in total (when including the five that he won as a player). According to reports, De Boer was offered the chance to interview for the Liverpool job but turned it down to remain with Ajax. "I am honoured by the request [from Liverpool] but I have only just started with Ajax", he said. In 2013, De Boer received the Rinus Michels Award for manager of the…