He added: “We learned at the beginning of January that ART (assisted reproductive technology) falls in the same week as Ireland.
“Even if I saw this possibility coming, it’s not possible to do both, so I won’t play.”
Hugo Auradou is likely to replace Flament.
Endometriosis is a condition where tissue similar to the lining of the womb grows in other places, such as the ovaries and fallopian tubes, and can cause fertility issues.
ART refers to a range of medical procedures, including IVF, designed to help individuals and couples overcome fertility challenges.
IVF involves fertilising eggs with sperm in a laboratory setting and transferring the embryos into the uterus.