Three breakout arms—Cristian Javier, Hurston Waldrep, and Jack Perkins—are evaluated for Week 20 to decide if they belong on fantasy rosters or stay waivers. Javier showed velocity rebound post-TJ and flashed his rising fastball and mixed offerings, but illness and prior surgery keep reliability in question. Waldrep’s splitter has elite swing-and-mike potential and a broadened repertoire, though control risk remains with his hefty groundball reliance. Perkins blends elite velocity with a dangerous slate of secondaries, yet command must prove durable in long stints as a regular starter. Overall, all three deserve attention for deeper leagues; in shallow leagues, consider weekend matchups and health first before adding.