Born in Lebanon, Gharzeddine moved to Australia at an early age and holds dual citizenship.
Career
Early career
Beginning his coaching career in Australia, Gharzeddine moved to Brazil where he coached the youth teams of Atletico Mineiro and Fluminense.[4] He then moved to Spain, coaching UE Cornellà's U14 team, before moving to Lebanon, where he coached SAS in the Lebanese Women's Football League between 2014 and 2016,[4][5] winning two league titles and a cup.[6][7]
Lebanon
In 2017, Gharzeddine became the head coach of the Lebanon women's national team.[8][9] He finished in third place in the 2019 WAFF Women's Championship.[3] Under his management, the national team made the biggest jump in points in the FIFA ranking of December 2021,[10] mainly due to ranking best second in the 2022 AFC Women's Asian Cup Qualifiers. In February 2022, he resigned as head coach of the Lebanon women's national team.[11]
On 22 February 2022, Gharzeddine was appointed head coach of Jordan Women's Pro League side Etihad,[13] section of the 6 Yard Football Academy.[14] In his first year with the club, he led the team to second-place finishes in the league and the cup in the club's debut season.[15]
He started his second season winning the first four games, scoring 18 goals and conceding two.[16] With the club sitting in first place with 17 points, Gharzeddine left Etihad on 1 August 2023, upon the expiration of his contract.[17]
Return to Lebanon
In 2024, Gharzeddine was re-appointed head coach of the Lebanon women's national team.[18]