Barely a year after being drafted, Jacob Wilson ready to make impact for Oakland A’s

OAKLAND — As he stood on the warning track that runs parallel to the third-base dugout, Jack Wilson couldn’t help but feel an overwhelming sensation of nostalgia as he saw his son, Jacob, decked out in Oakland A’s paraphernalia.

Jack cycled through the memories. The first time Jacob caught a ball. The first time Jacob hit a ball. The times that Jacob hit on major-league fields in front of Jack’s major-league teammates while harboring his own major-league ambitions.

For Jacob, having...