Table: tennis_matches_3
Columns: date
tournament
surface
opponent
score

Question: Who was the opponent when the score was 6–4, 6–7 (2–7) , 7–5?
SQL: SELECT "opponent" FROM tennis_matches_3 WHERE "score" = '6–4, 6–7 (2–7) , 7–5'

Question: Which tournament was andreas haider-maurer the opponent in?
SQL: SELECT "tournament" FROM tennis_matches_3 WHERE "opponent" = 'andreas haider-maurer'