Here are the boxers' official weights for Saturday night's pay-per-view card in Las Vegas:
Rolando Romero, 146.6 pounds -vs.- Teofimo Lopez, 147 (WBA welterweight title, twelve rounds);
Yoenli Hernandez, 159.2 pounds -vs.- Francisco Daniel Veron, 159.6 (middleweight, ten rounds);
Victor Santillan, 121.6 pounds -vs.- Gary Antonio Russell, 121.2 (WBA super bantamweight title, twelve rounds);
Carlos Utria, 140.8 pounds -vs.- Israel Mercado, 139.4 (junior welterweight, ten rounds);
Marco Romero, 164 pounds -vs.- Kahlil Mitchell, 164 (middleweight, eight rounds);
Joseph Brown, 157.4 pounds -vs.- Alton Wiggins, 156.8 (junior middleweight, six rounds);
Aldo Blancas, 140.2 pounds -vs.- Ricky Mamone, 142 (junior welterweight, four rounds);
Benjamin Johnson, 149.4 pounds -vs.- Jose Gabriel Rodriguez, 150 (welterweight, six rounds).
