Former NBA star Jerome Kersey died Wednesday from a blood clot that traveled from his left calf to his lung, The Oregonian reports.

Dr. Larry Lewman of the Oregon state medical examiner's office diagnosed the cause of death Thursday morning.

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"When a clot gets to the lung it seeks a vessel of the same size and they plug up,'' Lewman told the Oregonian. "It's something we see in people who are sedentary."

Kersey, 52, pl

ayed 17 seasons in the NBA, 11 of which came with the Portland Trail Blazers. He averaged 10.3 points and 5.5 rebounds per game for his career. His best season came in the 1987-88 season, when he averaged 19.2 points and 8.3 rebounds.