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:
| Match | Date | Competition or tour | Ground | Opponent | Score1 |
| --- | --- | --- | --- | --- | --- |
| 1.0 | 26 July | Pre-season | A | Dundee United | 1 - 0 |
| 2.0 | 28 July | Pre-season | N | Heart of Midlothian | 3 - 1 |
| 3.0 | 5 August | Asian Tour | A | Beijing Guoan | 3 - 0 |
| 4.0 | 7 August | Asian Tour | A | Yokohama Marinos | 1 - 0 |
| 5.0 | 11 August | Asian Tour | A | Mission Hills Invitation XI | 4 - 0 |
| 6.0 | 15 August | Franz-Beckenbauer-Cup | A | Bayern Munich | 1 - 0 |
| 7.0 | 29 August | Joan Gamper Trophy | H | Internazionale | 5 - 0 |
Question:
Which ground is match 4 held on?
Answer:
A