TOKYO, May 20 (Reuters) - Japan's Nikkei was flat on Friday, as worries about a recovery in the U.S. economy lingered, while investors stayed on the sidelines before the Japanese central bank's policy meeting decision is released.
Japan's benchmark Nikkei was flat at 9621.70, while the broader Topix was down 0.1 percent to 831.32.
(Reporting by Ayai Tomisawa; Editing by Joseph Radford)