Pittsburgh Pirates place Isaac Mattson on injured list with hip inflammation

In the United States, the Pittsburgh Pirates placed right-handed reliever Isaac Mattson on the 15-day injured list due to right hip inflammation before their game against the Chicago White Sox on September 8, 2026. Mattson has not recorded a win this season, holding a 5.35 ERA over 38 games. In a corresponding move, the Pirates recalled left-hander Brandon Eisert from Triple-A Indianapolis.