As the month of June winds to a close, the Major League Baseball landscape is starting to show a clearer line between contenders and non-contenders, though more than a few clubs still reside in the middle ground.

We're singling out some of the unsung heroes who are powering their respective lineups in this week’s MLB power rankings.

Featured in this week’s Power Rankings, Tarik Skubal shows out, the Astros are back among the game’s elite teams, Sonny Gray throws a super-charged Maddux, the Guardians’ bats are having a historically-bad June, James Wood gets the Barry Bonds treatment, and the Marlins are unstoppable.