Costas Philippou proved to his doubters that his past in boxing remains a strong skill, knocking Lorenz Larkin out with a combination Saturday in the co-main event of UFC Fight Night 40.

After catching Larkin against the fence, Philippou unloaded with a left hook that stunned him. A follow-up right to the face dropped Larkin to the canvas.

The win improved Philippou (13-4) to 6-3 inside the Octagon, but it was his first win since a 2012 victory over Tim Boetsch. The former Golden Gloves boxer had dropped back-to-back fights to Luke Rockhold and Francis Carmont.

Philippou pointed to his corner and stated that “they found (what was missing) for me.” The veteran admitted he was doubting himself and thinking about retirement before earning the finish.

“Whatever I lost, I found it,” he said. “Last time out, I wasn’t sure if I wanted to keep fighting and it showed. I looked awful. But the UFC called and gave me another shot.”

When the fight with Larkin started, Philippou seemed to have those doubts again, as he claimed he went “numb” from the shots delivered by his opponent.

“We were exchanging and he got me with a couple shots,” Philippou said.

Philippou now owns victories over the likes of Larkin, Boetsch, Riki Fukuda and Court McGee, along with a non-UFC victory over Uriah Hall.

Larkin (14-3) lost for the third time in his last four fights after starting his career 13-0 with one no-contest. That early success includes a win over Robbie Lawler from Strikeforce, along with the no-contest vs. Muhammed “King Mo” Lawal.