Alexander Zverev has become the latest tennis player to drop out of the Rio de Janeiro Olympics, citing health issues.

The rising German talent said in a statement that he did not feel "100 percent" in his last two matches in Washington and Toronto and that after consulting with his doctors and his team "we have decided that I have to withdraw from the Olympics." He did not give details.

The 19-year-old Zverev, who is ranked No. 25 in the world, lost in the semifinals of Washington to Gael Monfils and then lost in the first round to Lu Yen-hsun in the first round of the Masters Series event in Toronto.