James Shields watched Lorenzo Cain race back to the wall in left-center field, leap in the air and snatch Trevor Plouffe's drive away just before it landed in the bullpen. The Kansas City right-hander thrust his arms in the air, Royals relievers erupted in jubilation and Cain bounded back toward the dugout with no worries about a groin injury that had kept him on the bench earlier this week. It's been a long, long time since the Royals were winning like this, and they're enjoying every minute of it. The Royals won their ninth straight game, stretching their longest winning streak in more than a decade by beating Minnesota 7-2 Thursday behind Billy Butler's hitting and Cain's highlight reel catch in center field.