The Nelson Chamisa led MDC Alliance has filed its papers challenging the presidential election results in which the Zimbabwe Electoral Commission (ZEC) declared the incumbent, Cde Emmerson Mnangagwa as the victor.
Chris Mhike, in suit, leads Nelson Chamisa's legal team into the Zimbabwean Constitutional Court to file their challenge to Emmerson Mnangagwa's electoral victory last week.
"It will no longer happen".
Posting on his blog twitter handle, Chamisa said: "Our legal team successfully filed our court papers.We have a good case and cause!"
The MDC accuses Mr Mnangagwa's ruling ZANU-PF party of rigging the vote, the first poll since long-time president Robert Mugabe was ousted in November.
The party must prove any irregularities were widespread enough to change the outcome of the vote.
Meanwhile, a number of SADC presidents and former leaders have already planned to visit Zimbabwe for the Sunday inauguration.
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The Court has ordered that Mr. Biti is to surrender passport & title deeds and report twice a week to police, not to interfere with witnesses or address political gatherings.
European Union observers said that the ZANU-PF candidate had benefitted from an "un-level playing field" and some voter intimidation, though global monitors largely praised the conduct of the election.
"We've managed to place before the court forms that show the (results) figures were erased".
Mr Chamisa wants the court to declare him the victor or call a fresh election, his lawyer told Reuters news agency.
"We are seeking a declaration to the effect that the presidential election was not properly conducted".
"If [the judges] think the evidence is weak they could throw the case out fairly fast".
Senior Zimbabwean opposition figure Tendai Biti was arrested as he tried to flee to neighbouring Zambia to seek asylum on Wednesday, his lawyer said, allegedly on charges of inciting violence over the disputed election result. "But if they want to meet us in court we have sufficient legal minds to meet them squarely in court", ZANU-PF legal secretary Paul Mangwana said.