The milestone man doubled Mexico's advantage on 66 minutes, chalking up his half century in 104 international matches.

Carlos Vela opened the scoring from the penalty spot on 26 minutes when FC Tokyo defender Jang Hyun-soo handballed in the box. 

Vela's opener was the 14th spot-kick awarded at this tournament, one more than the entirety of  last year's World Cup.

With Korea throwing men forward to find the equaliser they were always in danger of a lightning counter and that's exactly what happened.

Hernandez profited from a fast break, cutting inside and getting the better of goalkeeper Cho Hyun-Woo.

Tottenham's Son Heung-Min scored a cracker deep in injury time, delivering South Korea their first goal of the tournament, but it was little more than a consolation.

Mexico have marked themselves as genuine contenders after making it two from two in Group F.

While it was a much improved performance by the Taegeuk Warriors they have nothing to show for it and bow out at the group stage with two losses.