Mexico built on last weekend's shock victory against Germany by deservedly beating South Korea 2-1 in Rostov-on-Don.
Mexico can move to within touching distance of the last-16 with victory against South Korea in Group F on Saturday.
Mexico claimed a famous victory as they defeated holders Germany 1-0 in Moscow in an action-packed World Cup Group F encounter.
Germany begin the defence of their World Cup against Mexico on Sunday hoping for a repeat of their 2017 Confederations Cup clash.
Mexico coach Javier Aguirre has stepped down as Mexico manager after their second-round elimination at the World Cup.
Mexico coach Javier Aguirre has vowed revenge over Argentina on Sunday.