Four teams on Monday will fight for a place in the World Cup quarterfinals.
The first match will be between Brazil and Mexico at Samara Arena at 5 p.m. (1400GMT).
Brazil is ranked first in Group E with seven points after beating Costa Rica and Serbia, and drawing against Switzerland, 1-1.
In Group F, Mexico ranked second after Sweden. Mexico defeated both Germany and Korea Republic; however, it was beaten by Sweden.
Belgium will take on Japan at Rostov Arena at 6 p.m. local time (1500GMT).
The Red Devils won Group G by beating Panama, Tunisia and England.
Japan ended Group H with four points and qualified to the second round ahead of Senegal on Fair Play points.