What happened: MLB's social account posted a 'Punchout pop quiz' challenging pitcher Gavin Williams to recall strikeouts he has recorded against some of the league's top hitters. The clip is a light, fan-engagement feature rather than game news.

Why it matters: Promotional spots like this spotlight a pitcher's signature swing-and-miss moments and help build a player's profile with fans. They reflect how the league markets its emerging arms during the regular season.

What to watch: Watch for Williams' next scheduled start to see whether the highlighted strikeout stuff carries over.