Three rising prospects in fantasy baseball making headlines are Coby Mayo of the Baltimore Orioles, Hyeseong Kim from the Los Angeles Dodgers, and Gunnar Hoglund of the Oakland Athletics. With the MLB season progressing, these players have emerged as potential waiver wire pickups, thanks to their recent call-ups and impressive minor league performances.

Coby Mayo, primarily a first and third baseman, has an impressive track record in the minors but struggled initially in his MLB debut. His power potential remains enticing for deeper leagues. Hyeseong Kim, a versatile infielder, is recognized for his speed and could offer valuable stolen bases for teams in need. Lastly, Gunnar Hoglund, a promising pitcher, recently debuted with a strong performance, making him a potential add in certain league formats.