Defending champion Novak Djokovicis out of the Australian Open, loses 2nd-round match in 5 sets to Denis Istomin

Published Jan. 19, 2017 3:45 a.m. ET

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AP

MELBOURNE, Australia (AP) Defending champion Novak Djokovicis out of the Australian Open, loses 2nd-round match in 5 sets to Denis Istomin.

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