
Roger Lemerre took the youngest man in his squad into a home tournament in 2004, and Haggui, then 20, featured in all six matches of Tunisia's run to the title. That 2004 title heads a career of 82 caps and five goals for Tunisia between 2003 and 2013, a World Cup in 2006, and a DFB-Pokal final with Bayer Leverkusen in 2009, with Hannover and Stuttgart to follow. Career record: club career at RC Strasbourg Alsace, Bayer 04 Leverkusen, Hannover 96.
| 2002–2004 | Étoile Sportive du Sahel |
| 2004–2006 | RC Strasbourg Alsace |
| 2006–2009 | Bayer 04 Leverkusen |
| 2009–2013 | Hannover 96 |
| 2013–2015 | VfB Stuttgart |
| 2015–2016 | Fortuna Düsseldorf |
| 2016–2018 | FC St. Gallen |
Tunisia legends whose careers overlapped Haggui's
One rank above: Ali Boumnijel at #12.
One rank below: Riadh Bouazizi at #14.
Tunisia's editorial top five: Tarek Dhiab · Hatem Trabelsi · Chokri El Ouaer · Ali Maâloul · Radhi Jaïdi.