Jeonbuk Motors clinched first place in the K-League on the last day of the season by defeating Gyeongnam FC 4-2.

The three points mean Jeonbuk progress to the final of the championship play-off series, which the top six teams of the league contest.

The hosts were three goals to the good by the break against an in-form Gyeongnam team.

Choi Tae-wook put the leaders ahead after 13 minutes, getting the final touch on a Luis shot that was heading wide.

Former Middlesbrough striker Lee Dong-gook doubled Jeonbuk's advantage after 34 minutes when he smartly half-volleyed a low cross past former international team-mate Kim Byung-ji.

Three minutes before the break Lee fired home from the edge of the box to finish a swift counter-attack in deadly fashion and record his 20th goal of the season.

Two second-half goals from Kim Dong-chan put Gyeongnam back in the game until Brasilia sealed the win 10 minutes from time.

"It was a tough game in which both teams tried to win," said Jeonbuk coach Choi kang-hee.

"I am very happy and grateful to the players and the fans. We made a couple of mistakes in the second half and let them back into the game but we got the win.

"It doesn't matter who you play in the play-offs, it is going to be a good team and anyone can win."

FC Seoul slipped to third after a 1-1 draw at home to Chunnam Dragons.

Dejan Damjanovic scored the winner with a spectacular 25-yard shot but the Montenegrin marksman was then sent off for his celebration.

Chunnam equalised with a minute remaining to dump Seoul out of the top two as substitute striker Jong Yoon-song scored from close range. Chunnam finish sixth - the last play-off position.

Pohang Steelers warmed up for the Asian Champions League final against Al Ittihad in Tokyo on November 7 with a 1-0 win over Suwon Bluewings to finish in second.

Seongnam Ilhwa are in fourth following a 3-0 win at home to Daegu.

Incheon United booked their play-off spot with a 1-0 win at Busan I'Park.

Elsewhere, Jeju United drew 0-0 with Gangwon FC while Daejeon Citizen defeated Gwangju Sangmu 3-1.