The Jordanian Prince Ali is the sole remaining challenger to Blatter after Luis Figo and Royal Dutch Football Association president Michael van Praag withdrew from the race in order to not split the anti-Blatter vote.
The 39-year-old is the son of the late King Hussein and the late Queen Alia.
Educated in Jordan, the United Kingdom and the United States, Prince Ali graduated from Salisbury School in Connecticut in 1993. He then entered Royal Military Academy Sandhurst in the United Kingdom and served in the Jordanian Special Forces before completing a degree at Princeton University.
He served as commander of King Abdullah II's Special Security in the Royal Guards for nearly nine years before swapping the military for politics.
Prince Ali is founder and president of the West Asian Football Federation and is also the president of the Jordan Football Association. In January 2011 he successfully ran for the position of FIFA Vice President representing Asia.
One of Prince Ali's most noteworthy efforts has been in successfully working to lift FIFA's ban on the hijab in women's football.
Prince Ali has called for the publication of ethics investigator Michael Garcia's report into allegations of corruption surrounding the 2018 and 2022 World Cup bids and said at the time of doing so: "It is time to shift the focus away from administrative controversy and back to sport. The headlines should be about football, not about FIFA."
In his election manifesto, Prince Ali wrote:
"I am a straightforward person with straightforward ideas and ethics – a person who loves our sport.
"I believe in uncompromising integrity. In good leadership. In fair play."