Brian Norman Jr. knocks Jin Sasaki OUT COLD with a left hook in the first minute of round five. It's an absolutely brutal finish as Sasaki is still lying flat on his back in the ring more than a minute later with members of his team and medical staff huddled around him. There are no celebrations from Norman.

Rising welterweight standout Brian Norman Jr. continued his ascension up the boxing ladder Thursday with a crushing one-punch knockout.

The shot put Sasaki out cold and the Japanese fighter was worked on by medics for several minutes, before being taken out of the ring on a stretcher. It meant Norman stood alone i