Doosan Keystone, Rookie Park Joon-soon challenged 'Muju Gongsan'
The Keystone duo is the first thing that is mentioned when evaluating a team's defense capability in professional baseball. The stability of the team's defense varies depending on the defense capabilities of the second and shortstop positioned on both sides of the Keystone (second base), the center of the in-play ground.온라인바카라 Theref