Casey, 26 in February, was one of the four players the Nats received from the Dodgers in the blockbuster deal that sent stars Max Scherzer and Trea Turner to Los Angeles. The 2017 20th-round pick split the 2021 season between Double-A and Triple-A, hitting at a combined .269/.329/.430 clip with 16 home runs, 26 doubles, two triples and 22 stolen bases (in 27 attempts). MLB.com ranks Casey, the a former two-way player at Boston College, as the organization’s No. 18 prospect and cites his strong arm, above-average speed and plus raw power as his best tools.
Lee, meanwhile, was Washington’s 15th-round pick back in 2018. He’s yet to pitch above the Class-A Advanced level, where he had a fairly pedestrian 4.32 ERA through 77 innings this past season. However, Lee also fanned more than 31% of his opponents at that level while recording a strong 47.8% grounder rate. Another two-way player in college, Lee has improved his velocity since being drafted and has run his heater up to 96 mph. He’s ranked as the team’s No. 21 prospect at MLB.com.
With Casey and Lee now added, the Nationals’ 40-man roster contains 39 players.