Kautondokwa also added the IBF Africa middleweight to his collection of belts.
Many boxing fans taught the fight would be exciting and travel twelve rounds, but it ended prematurely as the Namibian outclassed the Ghanaian with his height, body and heavy punches.
Sai came into the fight strongly in round two and three as he connected left and right hooks.
In round 4, Kautondokwa hurt Sai with a ferocious left hook, the Ghanaian stood his ground to trade punches with the Namibian.
Kautondokwa improved his record to (15-0, 14 KO’s), while Sai is now (32-3, 24 KO’s)
From Sammy Heywood Okine