Ranking rookies who could make an impact in ’26 postseason

MLB Pipeline ranked the top 10 rookies poised to make significant impacts during the 2026 postseason. Cleveland Guardians left-handed pitcher Parker Messick took the top spot following an outstanding campaign where he recorded a 2.56 ERA and 193 strikeouts. Boston Red Sox left-hander Payton Tolle and Milwaukee Brewers right-hander Logan Henderson rounded out the top three rankings ahead of their playoff appearances.

The rankings feature several key contributors across playoff rosters, including Braves reliever Didier Fuentes, Guardians outfielder Chase DeLauter, and Rays pitchers and position players Brody Hopkins and Victor Mesa Jr. Padres reliever Bradgley Rodriguez, alongside New York Yankees infield prospect George Lombard Jr. and outfielder Spencer Jones, also made the list as teams prepare for their postseason pushes.