Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Tournament | Surface | Opponent in Final | Score in Final |
| --- | --- | --- | --- | --- |
| 18 March 1985 | Rotterdam | Carpet | Jakob Hlasek | 6–1, 6–2 |
| 29 April 1985 | Hamburg | Clay | Henrik Sundström | 6–4, 6–1, 6–4 |
| 4 April 1986 | Kitzbühel | Clay | Andrés Gómez | 6–4, 4–6, 6–1, 2–6, 6–3 |
| 5 January 1987 | Auckland | Hard | Michiel Schapers | 6–2, 6–3, 6–4 |
| 26 January 1987 | Sydney | Hard | Peter Doohan | 6–2, 6–4 |
| 23 February 1987 | Miami | Hard | Ivan Lendl | 7–5, 6–2, 7–5 |
| 7 April 1987 | Dallas , – WCT Finals | Carpet | John McEnroe | 6–0, 3–6, 6–2, 6–2 |
| 13 July 1987 | Stuttgart | Clay | Jan Gunnarsson | 6–0, 6–2 |
| 27 July 1987 | Hilversum | Clay | Guillermo Pérez Roldán | 6–4, 1–6, 6–3, 6–2 |
| 20 September 1988 | Seoul Olympics | Hard | Tim Mayotte | 3–6, 6–2, 6–4, 6–2 |
| 13 March 1989 | Indian Wells | Hard | Yannick Noah | 3–6, 2–6, 6–1, 6–2, 6–3 |
Question:
What date has the opponent competing in the final of john mcenroe?
Answer:
7 April 1987