Happy Birthday to you!
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In our regular Sunday feature, FIFA.com presents you with some of the biggest names in football who will be celebrating their birthdays over the coming week.

23. Michel (51) is regarded as one of the best midfielders to represent Spain during the 1980s and 90s. He starred at the 1986 FIFA World Cup Mexico™, during which he made five appearances up to and including La Roja’s quarter-final defeat by Belgium. Four years later in Italy, he demonstrated the full extent of his talents, hitting the net four times and finishing third-top goalscorer. In addition, he took part in UEFA EURO 1988. After turning professional at Real Madrid, he claimed six Liga titles, two Spanish Cups, four Spanish Super Cups, two UEFA Cups and a Spanish Player of the Year award with Los Blancos over a 14-year period. He enjoyed one other playing experience with Mexican outfit Celaya, prior to hanging up his boots and moving into coaching. Michel first took the helm at Rayo Vallecano, followed by Real Madrid’s reserve team, Getafe, Sevilla and current club Olympiacos. He has guided the Piraeus-based giants to two Greek Championships and a Greek Cup since taking over.

24. Ruud Krol (65) is a veritable legend of Dutch football, having appeared at West Germany 1974 and Argentina 1978, and finished on the losing side in the Final on both occasions. The skilful defender also participated in two UEFA European Championships, in 1976 and 1980, securing third place at the former event. Krol began his career at Ajax, where he clinched seven Dutch League titles, four Dutch Cups, three European Cups, two European Super Cups and an Intercontinental Cup. Following subsequent spells with Vancouver Whitecaps, Napoli and Cannes, he moved into coaching, taking charge of Mechelen, Servette and the Egyptian U-23 side, whose victory at the Pan African Games saw him handed the reins of the Pharaohs’ senior XI, whom he guided to the quarter-finals of the CAF Africa Cup of Nations in 1996. Krol then moved back to club football, steering Zamalek to the Egyptian Cup, before joining the Dutch national set-up ahead of EURO 2000 and later assisting Ronald Koeman at Ajax. The determined Dutchman then coached Ajaccio, Zamalek (again), South African outfit Orlando Pirates, where he added six domestic trophies to his CV, Tunisian side CS Sfaxien, with whom he sealed a national championship and a CAF Confederation Cup, and the Tunisian national team. After failing to successfully negotiate Les Aigles de Carthage’s Brazil 2014 play-off versus Cameroon, he committed himself to Esperance at the turn of the year.

25. Victor Caceres (29) was part of the Paraguay team that appeared at South Africa 2010, but he could not prevent his country from bowing out in the quarter-finals. The following year, the defensive midfielder reached the final of the Copa America, where La Albirroja lost to Uruguay. Caceres won four Paraguayan League winners’ medals with Asuncion-based Libertad, before putting pen to paper with Flamengo in 2012, lifting the Brazilian Cup with O Mengão the following season.

26. Collette McCallum (28) appeared at the 2007 and 2011 FIFA Women’s World Cup™ tournaments with Australia. She had previously competed at the FIFA U-20 Women’s World Cups of 2004 and 2006, as well as at the 2010 AFC Women’s Asian Cup, where the Matildas emerged victorious. McCallum pulled on the jerseys of several Australian clubs, including Adelaide Sensation, Canberra Eclipse, Western Waves and Perth Glory. The influential midfielder also turned out for Pali Blues and Sky Blue in the United States. After a short stint with English side Lincoln Ladies, McCallum retraced her steps to re-sign for current employers Perth Glory.

27. Cacau (33) was a member of Germany’s squad at South Africa 2010, where he bagged a goal against Australia in the group phase. The Sao Paulo-born striker started out at Brazilian club Nacional, but moved to modest German outfit Turk Gucu Munich while still a teenager. He then joined Nuremberg, where his performances piqued the interest of Stuttgart, with whom he landed the Bundesliga title and attained two German Cup finals. The talented attacker is presently in the middle of his 11th season with Die Schwaben.

28. Grazielle (33) took part in the FIFA Women’s World Cup China 2007 with Brazil, but did not ever make it off the substitutes’ bench. The right winger acquired more playing time at two successive Women’s Olympic Football Tournaments – in 2004, where she earned a silver medal, and 2012 – and at Germany 2011.

29. Marie and Kristin Hammarstrom (32) defended the colours of Sweden at the 2011 Women’s World Cup, during which Marie notched the winning goal against France in the match for third place face and Kristin fulfilled the role of reserve goalkeeper. The twin sisters went on to play at the 2012 Olympic Games in London and at the 2013 UEFA Women's Championship, where the Swedes lost in the semi-finals to future tournament winners Germany.