Jose Fernandez surpassed rookie limits in 2013, the same season as Hyun Jin Ryu, Julio Teheran, Shelby Miller, Chris Archer, Martin Perez, Dan Straily, and Nolan Arenado.
Through 2024, Fernandez’ debut season in 2016 at age 20 was the 68th best ERA+ (176) in the Expansion Era (Since 1961), minimum 150 IP. At age 20 his closest comparison was Fernando Valenzuela (source: Baseball Reference).
He would have turned 32 during the 2024 season. What would his stats have looked like as we stand today? Through his first four seasons he had 38-17 record, 2.58 ERA, 589 strikeouts in 471.1 innings - adding up to a 14.2 WAR in a four-year career. What a loss for baseball.