keystone corner

Noun

(baseball) Second base, because it is often the key to scoring and defense.

Japanese Meaning

（野球用語）セカンドベース。得点や守備の鍵となるポジションを指す。

The keystone corner turned two crucial double plays and sparked the rally that won the game.

二塁手が重要な併殺を二つ決め、試合を勝利に導く反撃を引き起こした。

Sense（1）

(baseball) Second base, because it is often the key to scoring and defense.

Jones takes the toss at the keystone corner, on to first... double play.

keystone corners

（ plural ）