Although he appeared composed, with a mild smile on his face, for young Kei Nishikori, this is probably the biggest disappointment he's experienced in his tennis career.
Nishikori revealed at a Tokyo news conference on Monday that he suffered a stress fracture in his right elbow on May 20, as a result of a recent MRI checkup by his doctor in charge in New York.
The 19-year-old is expected to be out of action for two to three months.
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