Former Sierra Leone international John Jebbor Sherington has been appointed caretaker coach.
Mali battled to a draw against Uruguay and Senegal had kept their hopes alive with a 2:1 win over Qatar
Equatorial Guinea ranked in top 50 in latest Fifa world rankings.
Ghana defeated Panama to reach the top of Group B.
Nigeria produced a dominant second-half and thrashed North Korea.
U-20 WORLD CUP 2015 - GROUP C & GROUP D
Ghana survived a late fight-back to beat Argentina 3:2 in GROUP B.
FIFA president Sepp Blatter is being investigated by US officials
The Flying Eagles lost against Brazil.
Mali beat Mexico and Senegal lost against Portugal.
Group A
Match 53
Day 14
Czech Republic vs Mexico 0:3
Goals Mexico
M. Chávez (55')
J. Quiñones (61')
Á. Fidalgo (90'+4)
Assists Mexico
L. Romo (55')
J. Sánchez (61')
R. Alvarado (90'+4)
Czech 
Mexico