The Braves were forced to pivot after presumed starting shortstop Ha-Seong Kim tore a ligament in his hand while falling on ice. Mateo was that quick pivot. The 30-year-old hit just .177 in 79 at-bats for the Orioles in 2025. He still remains a plus baserunner, but his defense at shortstop has also regressed over the last few seasons, so it’s hard to get too excited about this from a fantasy perspective.