What happened: Atlanta Braves prospect Didier Fuentes, 20, has made the Opening Day roster and will pitch out of the bullpen, per Jeff Passan. Fuentes posted a perfect spring training line: 9 innings, 0 hits, 0 runs, 0 walks, 17 strikeouts. The Braves' No. 3 prospect throws a fastball up to 99 mph.

Why it matters: Fuentes provides high-upside relief depth for a Braves team plagued by pitching injuries, including potential absences in the rotation like Spencer Strider and Chris Sale. Strengthened bullpen could improve late-game reliability for NL East contenders, influencing over/under totals and saves props. Rare for a 20-year-old to break camp, echoing Julio Teheran.

What to watch: Monitor Fuentes' Opening Day usage and debut performance; watch for rotation opportunities if injuries mount.