Indian Boxers Manoj Kumar and Manpreet Singh have entered the pre-quarterfinals of the World Boxing Championship at Almaty in Kazakhstan. While Manoj got the better of Fatih Keles of Turkey in 64 kg weight category, Manpreet clinched a comprehensive victory over Seychelles' Keddy Agnes in 91 kg category. Manpreet will now face world number one Teymur Mammadov of Azerbaijan and Manoj will take on Canada's Yves Ulysse. Both the clashes are scheduled for Monday.