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:
| Year | Championship | Surface | Partner | Opponents in final | Score in final |
| --- | --- | --- | --- | --- | --- |
| 1982.0 | Australian Open | Grass | John Alexander | Andy Andrews John Sadri | 6–4, 7–6 |
| 1984.0 | U.S. Open | Hard | Tomáš Šmíd | Stefan Edberg Anders Järryd | 7–6, 6–3, 6–3 |
| 1986.0 | French Open | Clay | Tomáš Šmíd | Stefan Edberg Anders Järryd | 6–3, 4–6, 6–3, 6–7, 14–12 |
| 1989.0 | Wimbledon | Grass | Anders Järryd | Rick Leach Jim Pugh | 3–6, 7–6, 6–4, 7–6 |
| 1991.0 | French Open (2) | Clay | Anders Järryd | Rick Leach Jim Pugh | 6–0, 7–6 |
| 1991.0 | Wimbledon (2) | Grass | Anders Järryd | Javier Frana Leonardo Lavalle | 6–3, 6–4, 6–7, 6–1 |
Question:
What was the surface when he played with John Alexander? 
Answer:
Grass