Suspended FIFA president Sepp Blatter suffered a health incident at the weekend and is undergoing stress-related health checks but is not in hospital, a spokesman for the suspended FIFA president said on Friday.

"He is under medical evaluation, the doctors took him out for a few days, the doctors expect to him be back around Thursday or Friday of next week," Blatter spokesman Klaus Stoehlker said.

"He is under tremendous pressure from so many sides and perhaps this is a little bit difficult for a man who is not the youngest."

Blatter, 79, led soccer's governing body for 18 years and was provisionally suspended for 90 days in October amid the worst corruption scandal in FIFA's history.