Kenyans on Monday turned up at Kamukunji grounds for the Azimio la Umoja rally led by opposition leader Raila Odinga.
A crowd gathered as they patiently waited for ODM leader to arrive at the grounds.
Raila who has been out of the country is expected to make a 'major' statement over the August 9 general election.
The opposition chief has been in South Africa on a week-long tour in his capacity as the African Union's Special Envoy on Infrastructure.
He said he will reveal shocking details about how his presidential victory was stolen.
