World No. 19 Russian Karen Khachanov has spoken about frequent doping tests.
“Now we see that more and more there are some cases [related to doping]. I remember one or two years I was checked the maximum number of times. About 40 times a season.
It annoyed me a lot - the checks were almost every week. They could even check several times at one tournament. But I got used to it. It has become part of the profession,” tass.ru quoted Khachanov as saying.
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