Watch: 18-year-old Irish boxer earns another win with devastating one-punch knockout

18-year-old Monaghan boxer Aaron McKenna (3-0, 2 KO) earned his second win in the last three weeks after a devastating one-punch knockout of Keasen Freeman (4-2, 2 KO) at Fantasy Springs Casino, Indio, California.

McKenna dropped Freeman with a powerful right hand in the opening minute that sent the American crashing to the canvas. Freeman eventually found his way back to his feet but was waved off by the referee 2:06 into the first round. The stoppage gave McKenna the third win of his professional career after last month's victory over Jose Palacios and last year's win over Travis Conley. https://twitter.com/GoldenBoyBoxing/status/984604276285583361 https://twitter.com/PitchInk/status/984668786845302784 McKenna is currently training in Los Angeles at the IRON Fitness gym in Santa Monica. The Smithboro native  plans to keep busy in 2018 with his promoters Golden Boy Promotions planning eight fights for him this year. McKenna was fighting on the undercard of former WBC super featherweight champion Francisco Vargas (25-1-2, 18 KOs) who continued his comeback from last year's knockout loss to Miguel Berchelt with a sixth round knockout of with a knockout of Rod Salka (24-5, 4 KOs).