A 43-year-old suffered the worst loss of her MMA career when she fractured her arm in the first round of a fight

• Sidy Rocha, 43, suffered the worst defeat of her career Friday.
• Rocha fought Karine Silva at an all-women MMA show in Sao Paulo, losing midway through the opening round.
• Rocha's forearm seemed to snap when Silva had her in an armbar submission.
• Perhaps fueled by adrenaline, Rocha appeared to want to continue fighting, but the referee intervened to wave the bout off so she could receive medical attention.
• Watch the finish below.

A 43-year-old suffered the worst loss of her career when she fractured her arm in the first round of a mixed martial arts match.

It went down in Sao Paulo at the all-women Standout Fighting Tournament 22 show, which featured four fights on Friday.

Karine Silva fought Sidy Rocha in the penultimate bout, fighting in the flyweight division.

It ended horribly midway through the opening round, however, when Rocha had to withdraw from the competition while awkwardly dangling her fractured arm in the air.

Silva and Rocha exchanged submission attempts but, during an armbar, Rocha's forearm seemed to snap.

Perhaps fueled by adrenaline, Rocha appeared to want to continue fighting, but the referee intervened so she could receive medical attention on the injury.

Watch the bone-breaking finish here:

Rocha's pro MMA record fell to 12 wins (six knockouts, one submission, and five decisions) against eight losses with the defeat.

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