2017 K League Challenge
The 2017 K League Challenge was the fifth season of the K League 2, the second-highest division in the South [Korean football league system]. Champions and winners of the promotion playoffs could be promoted to the K League 1.
Teams
Team changes
Relegated from 2016 [K League Classic|K League Classic]Promoted to K League Classic
Newly joined
Withdrawn
Personnel and sponsoring
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.| Team | Managers | Kit manufacturer | Main sponsor | ||||||||||
| Ansan Greeners | ![]() Foreign playersRestricting the number of foreign players strictly to four per team, including a slot for a player from AFC countries. A team could use four foreign players on the field each game.
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