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During the surgery, surgeons often remove a tissue called the bursa while repairing torn tendons in the shoulder joint, but the study suggests that the small tissue plays a role in helping the shoulder heal.

Small fluid-filled sacs called bursa, which normally cushion the joint, may instead swell and ache.

“Daniels is fine,” Kelly said, describing the QB’s injury as a bursa sac issue.

Doctors diagnosed bursitis, inflammation of my elbow’s bursa sac, and prescribed antibiotics.

"This is our Afghan authentic dress. Afghan women wear such colourful and modest attires. The black bursa has never been part of the Afghan culture," tweeted Spozhmay Maseed, a rights activist based in Virginia.