What happened: Don Mattingly will remain as Philadelphia Phillies manager after taking over a 9-19 club and going 79-55 to reach the playoffs. Jon Heyman confirmed the decision, corroborating reporting from Matt Gelb and Charlotte Varnes.

Why it matters: The turnaround stabilized Philadelphia's season and secured a postseason berth. Retaining Mattingly gives the club continuity entering an offseason with roster decisions looming.

What to watch: Philadelphia is expected to formalize the move this week. Attention then turns to staff decisions and offseason roster moves.