Rangers pitching prospect Rocker, twice a top-10 pick, needs Tommy John surgery - The San Diego Union-Tribune
Texas Rangers Lose High Profile Prospect to Tommy John Surgery - Fastball
2021 MLB Draft Big Board, Updated: Keith Law ranks the Top 101 draft prospects - The Athletic
Rangers prospect Kumar Rocker to have Tommy John surgery - ESPN
Semien homers, Pérez throws 7 strong innings, Smith picks up 100th save as Rangers top Pirates 3-2
Kumar Rocker to have Tommy John surgery - Lone Star Ball
2022 MLB Draft Instant Analysis, Full Scouting Reports For Every First-Round Pick — College Baseball, MLB Draft, Prospects - Baseball America
Texas Rangers 2023 midseason prospect rankings: Part 1 (Nos. 72 through 43) - The Athletic
Rangers pitching prospect Kumar Rocker to have Tommy John surgery - The Athletic
Texas Rangers welcome Kumar Rocker as two previous top picks make MLB debuts - ESPN