![World #5 men's player Kei Nishikori looks at his racquet after a bad shot, during practice at the Hisense Arena in Melbourne, Tuesday, Jan. 13, 2015. The Australian Open tennis tournament, starts World #5 men's player Kei Nishikori looks at his racquet after a bad shot, during practice at the Hisense Arena in Melbourne, Tuesday, Jan. 13, 2015. The Australian Open tennis tournament, starts](https://l450v.alamy.com/450v/2jwy46r/world-5-mens-player-kei-nishikori-looks-at-his-racquet-after-a-bad-shot-during-practice-at-the-hisense-arena-in-melbourne-tuesday-jan-13-2015-the-australian-open-tennis-tournament-starts-next-monday-january-19-aap-imagejoe-castro-2jwy46r.jpg)
World #5 men's player Kei Nishikori looks at his racquet after a bad shot, during practice at the Hisense Arena in Melbourne, Tuesday, Jan. 13, 2015. The Australian Open tennis tournament, starts
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