Each new season brings breakout stars, players who spring from relative obscurity to become major contributors for their clubs. Some come saddled with hype they live up to, like Carlos Correa and Kris Bryant a year ago. More arrive on Opening Day brimming with projectable skills that make them poised to improve their performance from the previous year. Others still emerge seemingly from nowhere, like Chris Colabello last season or Steve Pearce in 2014.