Metsu is probably most famous for masterminding Senegal's 1-0 win over his native France - then defending world champions - in the opening game of the 2002 World Cup finals in Japan and South Korea.
Midfielder Pape Bouba Diop scored the winning goal against France, but it was an occasion that helped in launching the career of El Hadji Diouf, who joined Liverpool largely on the basis of his World Cup exploits.
Metsu's side went on to reach the last eight. That year, Senegal also reached the African Nations Cup final.
He became a familiar face in the Gulf region, winning the Gulf Cup in 2007 as head coach of the United Arab Emirates before becoming Qatar coach in 2009 after the UAE failed to qualify for the 2010 World Cup finals.
He apparently converted to Islam during his spell in the Middle East becoming known latterly as Abdullah Metsu.
At club level, he coached the UAE outfit Al Ain to the Asian Champions League title in 2003 after 13 years working in French football between 1987-1999. As a player he turned out for Anderlecht and also had spells with Lille and Nice.
The much-travelled Metsu, also known as "The White Sorcerer", was diagnosed with colon cancer in July 2012 after replacing Diego Maradona as coach of Dubai-based Al Wasl.
The disease is said to have spread to his lungs and liver. He died at a clinic in his hometown of Coudekerque Village in Northern France.