Briton Dereck Chisora beat Ondrej Pala with a third-round stoppage at the Copper Box in London.
The referee stepped in after Chisora forced his Czech opponent to turn his back with a succession of fierce blows.
The victory, Chisora's fourth stoppage of the year, ensured he defended his WBO International title and took the vacant WBA International belt.
"Fair play to the guy - he hit me with some good shots, but he didn't hurt me," said Chisora.
"I want a big opponent, someone who can test me, and that's what we're pushing for now.
"It's all about getting into the right position to fight for those titles. I've just got to keep fighting and keep winning."
Pala, 29, was not expected to cause his 29-year-old opponent many problems, but rocked Chisora with a heavy left hand in the second round.
The Briton took a moment to recover, but responded well in the third to land some heavy shots to head and body which took their toll on Pala, who could not respond.