According to Nielsen Media Research, Saturday night's Julio Cesar Chavez Jr. - Marcos Reyes fight averaged 663,000 viewers (with a peak of 707,000).
This number was 7 percent more than the 618,000 viewers Chavez - Fonfara drew in April. But Chavez's fan base has really taken a hit with his crybaby attitude and his lack of trying to make weight for his fights. Everyone can tell that his heart just isn't in it and nobody wants to watch that.
Just an example of how far the mighty have fallen - In 2014, his rematch with Bryan Vera averaged 1.39 million viewers on HBO and was the most watched fight of the year. Compare those numbers to his last fight.