What happened: Philadelphia sent George Klassen and Sam Aldegheri to Los Angeles for Carlos Estévez at the 2024 deadline. Estévez became the Phillies’ closer before Francisco Lindor’s grand slam ended their NLDS run.
Why it matters: Philadelphia exchanged two controllable arms for immediate October bullpen help. Klassen has since shown starter potential, but persistent control trouble leaves his long-term role unsettled.
By the numbers: Estévez recorded a 2.57 ERA and six saves across 20 games for Philadelphia. Klassen has 24 strikeouts and 21 walks in 27 innings, while Aldegheri has a 5.67 ERA with 44 strikeouts and 37 walks across 60 1/3 major-league innings.
What to watch: Klassen’s strike-throwing and Aldegheri’s usage will shape the long-term verdict.