Tennis Players' surname

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Across
  1. 5. most grand slams on one surface
  2. 6. First ever world number 1 in tennis
  3. 7. Only player to have the Golden Masters
  4. 9. richest tennis player
  5. 12. has won the most men's SINGLES titles
  6. 13. First tennis player to win the Golden slam
Down
  1. 1. Only Brazilian world number 1 in tennis
  2. 2. youngest world number 1 ever
  3. 3. Has the most men's titles in tennis
  4. 4. Longest consecutive weeks as world number 1
  5. 8. Youngest tennis player to win a grand slam
  6. 10. Longest win streak in tennis
  7. 11. hit the fastest serve on the ATP tour