Willson Contreras throws helmet at Cade Cavalli after 'sit down boy' comment starts Red Sox-Nationals fight

A brawl broke out between the Boston Red Sox and Washington Nationals at Fenway Park, sparked by a 'sit down boy' comment directed at Willson Contreras. The Red Sox catcher became enraged and threw his helmet at Nationals pitcher Cade Cavalli during the altercation. The incident escalated into a bench-clearing fight between the two teams.