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SANTA CLARA, CA - AUGUST 23: Running back Jarryd Hayne #38 of the San Francisco 49ers carries a punt from the Dallas Cowboys in the first quarter of a preseason game on August 23, 2015 at Levi's Stadium in Santa Clara, California. The 49ers won 23-6. (Photo by Brian Bahr/Getty Images)

SANTA CLARA, CA - AUGUST 23:  Running back Jarryd Hayne #38 of the San Francisco 49ers carries a punt from the Dallas Cowboys in the first quarter of a preseason game on August 23, 2015 at Levi's Stadium in Santa Clara, California.  The 49ers won 23-6. (Photo by Brian Bahr/Getty Images)