Chicago White Sox top pitching prospect Michael Kopech will begin the year in minors. Kopech is still working on his third pitch, the changeup and with the White Sox in rebuild mode, there is no incentive to start his big league clock. Kopech is one of the best young arms in the game and is almost certain to pitch in the big leagues at some point in 2018. He should already be owned in dynasty leagues and is a strong stash in mixed leagues.