Braves Promote 20-Year-Old Prospect Fuentes For Marlins Start

The Miami Marlins have called up left-handed pitcher Josh Simpson for his MLB debut against the Atlanta Braves, following several roster moves including designating Robinson Pina for assignment. Simpson, a 27-year-old reliever, has shown promise with a 3.41 ERA and 1.01 WHIP in Triple-A this season. Meanwhile, the Braves are promoting top prospect Didier Fuentes, a 20-year-old right-handed pitcher, to start against the Marlins on Friday, aiming to give their starting rotation extra rest amid a grueling schedule. Fuentes has rapidly advanced through the Braves' farm system, showing strong strikeout rates despite some challenges at Double-A, and will be the youngest starting pitcher in the majors since 2016. The Braves recently designated José Ruiz for assignment after brief appearances, making room for Fuentes on the roster. Both teams are making strategic pitching staff adjustments as they continue to compete in the 2025 season.