The 30-year-old Filipino dominated Duke Micah throughout with a series of punishing body blows, setting a frenetic pace from the opening bell at the Mohegan Sun Arena in Uncasville.
"It is impossible to live without failing at something, unless you live so cautiously that you might as well not have lived at all- in which case, you fail by default, Moreover I didn't learn to be quite when I had an opinion. The reason they knew who. I was is because I told them, with God on my side I shall raise again.
Thank you all for your prayers and support” Micah wrote on his Facebook page.
Casimero, who improved to 30-4, with 21 knockouts, had Micah in trouble in the second round, sending the challenger crashing to the canvas with a left hook that left the Ghanaian clinging on.
Micah (25-1) managed to survive into the third round, but with Casimero sensing victory, the Filipino launched an early onslaught and when a left followed by a right uppercut left Micah reeling, the referee stepped in to end the bout and earn a third round TKO victory for Casimero.