Kei Hosoya

Kei Hosoya (細谷 圭, born January 17, 1988) is a Japanese former professional baseball infielder who is currently a coach for the Toyama GRN Thunderbirds of Baseball Challenge League. He has played in his entire career with the Nippon Professional Baseball (NPB) for the Chiba Lotte Marines.

Playing career
Chiba Lotte Marines selected Hosoya with the forth selection in the 2005 NPB draft.

On April 13, 2008, Hosoya made his NPB debut.

On December 2, 2020, Hosoya become a free agent. On December 26, 2020, Hosoya announced his retirement.

Coaching career
On December 26, 2020, Hosoya announced his retirement and also become coach for the Toyama GRN Thunderbirds of Baseball Challenge League.