NBA Finals ratings sank to COVID-era levels for the Mavericks’ Game 4 rout of the Celtics. Friday’s Celtics-Mavericks NBA Finals Game 4 averaged 9.62 million viewers on ABC, according to Austin Karp of Sports Business Journal — marking the least-watched Finals game since Suns-Bucks Game 3 in July 2021 (9.25M) and the least-watched Game 4 since Lakers-Heat in the 2020 “bubble,” a game that took place in October (7.70M). Outside of those two COVID-affected years, no Finals game has had a smaller audience since Game 3 of the 2007 series (9.49M).