Andy Ruiz's father has blasted his son's preparation for the rematch with Anthony Joshua while explaining why he came in overweight for the world title bout.
The Mexican-American boxer was outclassed by Joshua as the Brit won a wide points decision to reclaim the heavyweight world titles in Saudi Arabia.
Ruiz Jr entered the contest 15lbs heavier than he did for the first fight as he failed to land a glove on Joshua in a underwhelming performance.
He has been the subject of intense criticism for his flat display including a scathing assessment by his own father, who wanted to cancel the rematch.
"Andy thought he was going to do good in the weight in the fight," Ruiz Sr told Boxing Social.
"I told him a month ago that 'you're not going to do good at the weight. It's going to be too hard, because you're going to be tired, and you're not going to have the movement'.
"He came overweight, that was the problem. It was too much weight for his body. He weighed 282. Plus after he eats, he was almost 290-something. There was no way he was going to do something good, so now he's learned his lesson and now he's going to come back.
"All the fights that he's done in his career, he was 255, 257, 246. The last time he fought, he was at 268, and he felt comfortable, but I told him, 'You have to lose weight', but at that time, we didn't have enough time to lose weight. That's why he fought at that weight.
"He was not listening because of the fame. He was with a Rolls Royce, he was with his friends, he was throwing parties, and not listening to the camp.
"He was running by himself. We were in a house in Manhattan Beach, that we he could come with us, and stay in the house. He didn't want to stay with us. He wanted to stay with his friend, and try to run by himself. It was the worst camp that he could be doing. I don't think nothing about AJ. He's a good boxer, and a great person. We love AJ, and he deserved this night to win. But Andy, he didn't do the right things, that's what happened."
Ruiz Jr called for an immediate trilogy bout, but Joshua has other plans with mandatory challengers by the WBO and IBF lined up.
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