With the extremely poor start the KC Royals have been having in 2017, it has been well documented that the KC Royals are in the best position to sell in order to gain some prospects for their valuable soon to be free agents. It should also be well-known by now that the KC Royals cannot sign all of these players back because they are too expensive for the mediocre payroll the Royals currently have.
With that said, it is hard to say what type of players the Royals will gain in return for their 4 month rentals.