Given the form the team has shown so far this year in Russian Federation, however, fans will no doubt be disappointed if Mexico doesn't at least make it through to an elusive fifth match for the first time since the World Cup was last held in Mexico in 1986. Chicharito bagged his 50th goal in global play on a counter-attack led by breakout star Hirving Lozano - but Mexico was only able to score because referee Milorad Mazic allowed play to continue after Hector Herrera fouled Ki Sung-yueng to gain possession.
South Korea will be eliminated if Sweden wins or draws.
Hernandez and Carlos Vela scored a goal each at Rostov Arena. Hernandez added the second in the 66th, scoring his 50th goal for Mexico.
Let's look at the South Korea vs. Mexico betting lines.
Mexico, shock winners over Germany in their opening game, went ahead in the 26th minute when Vela sent goalkeeper Cho Hyun-woo the wrong way from the spot after Andres Guardado's cross hit the outstretched arm of Jang Hyun-soo at close range. South Korea lost its opening match.More news: US, UN welcome Afghans ceasefire extension
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Miguel Layun pressed for a second goal before the break but his shot from a low cross-field drive was tipped away by Jo Hyeon-woo. "We've received a lot of praise, we the team, and we've tried to remain focused".
South Korean forward Son Heung-min scored a scintillating consolation goal in injury time but it was too little too late for the East Asian nation, which now can not qualify for the first knockout stage of the tournament.
Mexico relied on keeping possession and long-range shots, with a powerful attempt from Guardado forcing an athletic save from Jo in the second half.
The Taeguk Warriors of South Korea enter the Mexico contest with a seven-game World Cup winless streak.
Mexico will reach the last 16 should Sweden beat Germany in Saturday's final game, kicking-off at 19:00 BST.
Winning the group with three straight victories will be a good sign, but getting past the next round is the ultimate goal.