What happened

The Miami Marlins optioned left-hander Braxton Garrett to Triple-A Jacksonville, clearing the way for Janson Junk to serve as the team's No. 5 starter alongside Sandy Alcantara, Eury Perez, Max Meyer and Chris Paddack. Separately, the Los Angeles Dodgers confirmed that Roki Sasaki will begin the season in their rotation despite a rocky spring training with a 13.50 ERA and control issues.

Why it matters

For Marlins bettors, this locks in a youth-focused rotation with unproven Junk over experienced Garrett, potentially leading to volatile early outings and prop bets. Dodgers' faith in Sasaki's upside amid depth concerns boosts their rotation potential but risks early struggles impacting over/unders and series odds. Both moves highlight roster finalization with playoff implications minimal but fantasy and prop relevance high.

What to watch

Watch Janson Junk's season debut and Roki Sasaki's first MLB start for performance indicators; track Garrett's AAA outings for potential recall.