Boxer Davis knocked out Ruiz and defended his WBA world title

In a duel that took place in the American Carson, Davis knocked out an opponent in the first round.

This title defense was the first for an athlete from the United States.

Now Davis has 21 victories in the professional ring and no defeats.

Earlier, the world boxing champion according to the WBO light heavyweight champion Sergey Kovalev said that he plans to play a few more years.