OAKLAND -- The A¡¯s will have to find a new third-base coach for the upcoming season.

Matt Williams has accepted a job in Korea to manage the Kia Tigers of the KBO League. Oakland¡¯s former third-base coach will receive a three-year deal, according to MLB Network¡¯s Jon Heyman.

Williams, 53, spent the last two seasons not only coaching third for the A¡¯s, but he also served as a resource for the group of infielders who made up one of the best defenses in baseball. This will be Williams¡¯ first managerial opportunity since a two-year stint with the Nationals from 2014-15 that saw him earn National League Manager of the Year honors in his first season.

This might not be the only departure from A¡¯s manager Bob Melvin¡¯s coaching staff this offseason. Quality-control coach Mark Kotsay and bench coach Ryan Christenson also are expected to garner interest for vacant manager openings around Major League Baseball.