As Liberia's first female head of state, 79-year-old Nobel Peace Prize victor, Ellen Johnson Sirleaf, steps dpwn she leaves the impoverished West African country still reeling from the effects of previous wars and the deadly Ebola outbreak. Results will be announced progressively, though the elections commission has two weeks to give final results.
"This transition is critical and if we succeed, if Liberia succeeds, West Africa succeeded and Africa succeeded", he said.
As Liberia's most famous son, Weah attracts huge crowds and has a faithful youth following in a country where a fifth of the electorate is aged between 18 and 22.
Weah grew up in Clara Town slum in Monrovia and went on to star for AC Milan, Paris St Germain and Chelsea and become the only African to win FIFA World Player of the Year. It says tally of votes started Tuesday, 26 December across the country and it is continuing.
He will rather compound the problems in Liberia because I don't see him being trusted by the President-Elect, whom he (Obasanjo) openly worked against in 2005 to impose the outgoing President, Ellen Johnson Sirleaf for reasons best known to him.
Taylor is serving his 50-year prison sentence in the United Kingdom for war crimes related to the conflict in neighbouring Sierra Leone.More news: Will a Salad a Day Keep Memory Problems Away? - Alzheimer's Society comments
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They are selecting a victor between George Weah and Joseph Boakai to succeed Africa's first elected woman President Ellen Johnson Sirleaf.
As counting gets underway, the candidates have been urged to keep supporters calm to avoid the electoral violence that has hit Liberia in previous years.
The National Elections Commission said that with 98.1% of ballots counted, Mr Weah had won 61.5% of the vote.
On Tuesday polling stations displayed voter lists as a mark of transparency for the run-off.
His CDC party contested the results in 2005 and 2011, but has refrained so far this time.