Zimbabwe's main opposition party, the MDC, is warning of massive vote rigging during next Saturday's elections. Speaking at a party rally in the capital Harare, MDC leader Morgan Tsvangirai said President Robert Mugabe will use any means to win the poll, including printing illegal ballots. But the opposition leader was confident that the MDC will win a landslide victory. President Mugabe voiced equal optimism during a speech held in the city of Bulawayo, an opposition stronghold. He vowed that Mr Tsvangirai will never become president, saying any vote for the opposition leader is a lost vote.