Disgraced former FIFA president Sepp Blatter plans to attend Portugal's clash with Morocco on Wednesday night AEST.
The 82 year-old Swiss is banned from taking part in any FIFA activities until 2022.
"Sepp Blatter, despite currently being banned from football, will attend Portugal v Morocco in Moscow tomorrow, his spokesman tells me. The former FIFA president has an open invite from Vladimir Putin to attend the tournament," BBC Sport correspondent Richard Conway posted on Twitter.
Blatter served as FIFA president from 1998 till 2015 but stepped down in June 2015 amid a massive corruption scandal and was subsequently banned by the FIFA Ethics Committee for eight years, later reduced to six.