The 20-year-old, who is set to join Celtic from FC Seoul in January, broke the deadlock just before the break and Oh Beom-seok sealed a deserved win with 10 minutes remaining as World Cup-bound South Korea extended their unbeaten run to 26 games.

The hosts dominated from the start and Monaco striker Park Chu-young came close to a third consecutive goal for his country as his free-kick just after the hour mark came back off the foot of the post.

The hosts made the breakthrough three minutes before the break as Bolton midfielder Lee Chung-yong burst down the right and crossed for Ki to score with a fierce first-time shot from just outside the area.

Park Ji-sung should have doubled the lead on the hour but the Manchester United midfielder shot wide from a good position on the edge of the area.

Senegal's best chance came with 15 minutes remaining as Mame Birame Diouf, who is currently on loan at Molde until January after signing for Manchester United from the Norwegian club over the summer, headed over from close range.

And Korea took full advantage five minutes later as Oh broke into the area and his attempted cross from a tight angle ended up in the back of the net.