Fifa election: Here is how it will work
Here Press Association Sport's Martyn Ziegler explains the voting procedure at Friday's FIFA presidential election in Zurich.
- Sepp Blatter and Prince Ali Bin Al Hussein will both have opportunities to address the FIFA Congress.
- Each of FIFA's 209 associations should have a vote, although a few can face disqualification for reasons such as not playing in competitions.
- If either candidate achieves two-thirds of the eligible vote in the first round then he wins outright - if there are 209 votes that means 139 to win outright.
- If there is no outright victory, the winner will simply be whoever gains more votes in the second round.
Prince Ali needs at least 70 votes to take the election to a second round.
If there is no outright victory, the winner will simply be whoever gains more votes in the second round - 105 votes will win it.
Voting will take place via a secret ballot.
FIFA is made up of six confederations, varying in size.
UEFA (Europe) has 53 votes
CONCACAF (north, central America and Caribbean) has 35 votes
CAF (Africa) has 54 votes
AFC (Asia) has 46 votes
CONMEBOL (South America) has 10 votes