In today's fantasy baseball landscape, several undervalued hitters are making their mark, suggesting they might be worth a roster spot. Players like Trent Grisham of the New York Yankees and Ryan O'Hearn of the Baltimore Orioles have shown flashes of brilliance, yet remain under-rostered in many leagues. Grisham, despite a career .217 batting average, has ramped up his power numbers with 10 home runs this season. Meanwhile, O'Hearn is batting .306 and has been productive with 12 bases in just three games this month.

Other notable mentions include Kyle Stowers of the Miami Marlins, who has recently made headlines with a walk-off grand slam, and Jacob Wilson of the Oakland Athletics, a promising rookie with a .302 batting average. Maikel Garcia of the Kansas City Royals is also catching attention with a .322 batting average and significant contributions in stolen bases. Managers need to assess these players carefully, as they could offer long-term value beyond their current hot streaks.