"My club is not in favour of it. It´s a firm and definite decision.
"I have not stopped playing with the national team for 14 years. I have played in every competition, whether for the juniors or seniors, but I can no longer play 12 months out of 12 every year. I need a break."
"The French national team has a reservoir of players that are strong and capable of qualifying," he said.
"I am not ruling out going to support them during my holiday if I can."
Another French star Tony Parker has already declared that he will not play for the national team this summer.
Diaw averages 10.5 points per game in NBA this season.