Suspended Fifa president Sepp Blatter is in hospital and is likely to remain there for several days.
Blatter, 79, who has led world football’s governing body for 18 years, was provisionally suspended for 90 days last month amid a corruption scandal.
He suffered what has been described as “a small breakdown” but is expected to make a full recovery.
Blatter is said by friends to be able to communicate, and is likely to be treated until next Tuesday.
Both Blatter and Uefa president Michel Platini were given 90-day bans by Fifa’s ethics committee in the wake of a Swiss criminal case investigating financial misconduct at football’s governing body.
Blatter is reported to be “fully fighting against the ethics committee decision” and has told friends “no committee can put me out of the game.”
The criminal case centres on whether Blatter misused Fifa money by making a 2m euros (£1.35m) payment to Frenchman Platini for consultation work. They both deny any wrongdoing.
Seven candidates will stand in Fifa’s presidential election to succeed Blatter on 26 February.