One of South Korea's premier sluggers will be knocking on the big league doors this winter.

The NC Dinos announced Monday they've asked the Korea Baseball Organization (KBO) to post outfielder Na Sung-bum for major league clubs. The next step is for the KBO to formally inform Major League Baseball (MLB) of his availability.

Under the posting system, any interested big league team will be able to negotiate with Na during a 30-day period. It will begin at 8 a.m. Eastern Time (ET) on the morning after MLB officially notifies its 30 clubs of Na's status and end at 5 p.m. ET on the 30th day.