UFC fighter Mackenzie Dern suffers loss four months after giving birth

MMA fighter Mackenzie Dern has suffered the first defeat of her UFC career after stepping into the octagon just four months after giving birth.

The 26-year-old American, who gave birth to daughter Moa in June, resumed her UFC career today at UFC Tampa, where she was outclassed by Amanda Ribas.

The 26-year-old Brazilian won the decision with all three judges ruling 30-27 in her favour.

The loss means Dern now has a 2-1 record while Ribas moves to 2-0.