Egyptian Interim President Adly Mansour is scheduled to give a televised speech Sunday ahead of the country's presidential elections, state-owned media agency MENA reported.

Mansour was head of Egypt's High Constitutional Court before taking up the interim presidency following the ouster of Mohamed Morsi on 3 July 2013.

Egyptians are expected to cast their ballots across the country Monday and Tuesday, fulfiling the next steps in the political roadmap announced by then-Defence Minister Abdel-Fattah El-Sisi on Morsi's removal.

El-Sisi and leftist politician Hamdeen Sabahi are the only two contenders in the presidential race. El-Sisi is expected to win by a landslide.

Egyptian expats already cast their ballots 15-19 May. Out of 318,033 votes, El-Sisi won 296,628 (94.5 percent), while Sabahi got 17,207 (5.5 percent). Invalid votes totalled 4,198.