Kyle Schwarber, Carlos Correa and Trea Turner each came up from the minors before the All-Star break and had a strong second half to catapult their teams into the postseason over the past two years.
Which rookies can make the biggest impact down the stretch this year?
Aaron Judge, Cody Bellinger, Andrew Benintendi, Trey Mancini and Yuli Gurriel are excluded from this list because they've been in the majors since April.
Here are five potential difference-makers who were called up after May 1:
Clint Frazier, New York Yankees, OF: Frazier is batting .292 (7 for 24) with six extra-base hits, including three homers, since being called up July 1 following a rash of...