Opposition in Greece's bailout referendum will end Friday, with rallies pushed in the city capital for "Yes" and "No" supporters.

The five-day rally is in accordance with the campaign on the most crucial votes in Greece's contemporary history, with many voters still confused about the outcome.

Rival campaigns scattered to voice out their opinions as banks and markets remain closed. Fox said that the International Monetary Fund predicted that Greece will need tons of cash from countries from the Eurozone, as well as other countries and others over the next three years could put even more pressure to the Greek government.

Greek Prime Minister Alex Tsipras said that their efforts are focused on overcoming the crisis as fast as possible, with a solution that preserves the dignity of their people.

At 40, the young prime minister is risking his administration on calling on voters to reject austerity measures imposed by bailout lenders, despite coming close to negotiations last week. BBC News said that Tsipras is expected to grace the rally in support of the "No" vote.

EU leaders however, predict that a "No" vote might cause Greece to leave the Eurozone, on the account that the Greek economy is strangled after it lost access to new funds. It has caused bank shutdowns and cash withdrawal limits. As a result, Greece has been in a standstill with its creditors for months now, and the referendum was called only last week.

Tense negotiations between Greece and its creditors were coming to a close, and the prime minister told the New York Times  that the economic terms his lenders were demanding in exchange for new loans was a bitter pill to swallow.

At a meeting of Eurozone leaders at its headquarters, Mr. Tsipras had asked German Chancellor Angela Merkel about a possible debt relief with a deal — only to be denied again.