Another Super Saiyan

The Mysterious youth confronts Frieza, King Cold and their soldiers. The soldiers attack the stranger but get sliced up by his sword. More soldiers charge at the boy but they are easily handled. Frieza and King Cold laugh thinking the stranger will be no trouble at all. The stranger announces that he knows Goku and is a Super Saiyan. He transforms into a Super Saiyan and the Z-Fighters wonder if it's Goku they are sensing. Frieza tries 3 times to defeat the stranger all failing. He fires a ball at the stranger 10 times the size of the one that destroyed Namek. He just catches it shatters it. Is this yours he said to Frieza. The stranger then takes out his sword. He slices Frieza in half.