A bursa is a closed, fluid-filled sac that functions as a cushion and provide a gliding surface to reduce friction between tissues of the body around joints. Essentially, a bursa provides a slick surface so that tendons and ligaments can slide across a bony prominence so it doesn't catch or rub against the bone.
Mark Tatum's appointment as NBA Deputy Commissioner is recognition of the confidence our owners and teams have in his leadership ability and track record of success, said Silver.
by Dan Rosen / NHL.com. NEW YORK -- Sitting side-by-side in the NHL's midtown office, NHL Commissioner Gary Bettman and his counterpart from Major League Baseball, Rob Manfred, served perfectly as a symbol of the groundbreaking partnership between two of the most successful sports leagues in the world.