The guessing game about Julio Cesar Chavez Jr.’s weight ends later today with the official weigh-in. The browsing window opens at 5:45 p.m. with the undercard bouts starting at 6 p.m. ET. Chavez Jr. and Vera are expected to go on at 6:15 p.m. ET. The fight airs live this Saturday (September 28) on HBO. Click HERE to watch the live stream.