In Week 4 of the 2025 MLB season, several players have emerged as notable risers and fallers in fantasy baseball. Tyler Soderstrom of the Oakland Athletics has solidified his status with a scorching .309 batting average, 9 home runs, and 19 RBIs, demonstrating immense power with a career-low strikeout rate. Jung Hoo Lee of the San Francisco Giants has also made waves, boasting a .355 average with three home runs and good speed on the basepaths. On the pitching side, Chris Bassitt of the Toronto Blue Jays is excelling with a staggering 0.77 ERA, showcasing high strikeout potential, while Nick Pivetta from the San Diego Padres is displaying a promising 1.57 ERA. Conversely, not all stars are shining; Yordan Alvarez of the Houston Astros has struggled significantly with a .215 average, and Aaron Nola of the Philadelphia Phillies is fighting an uphill battle with a 6.65 ERA.