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 the Final | Score in the Final |
| --- | --- | --- | --- | --- |
| 9 August 2004 | L'Aquila , Italy | Clay | Andrey Golubev | 6–2, 6–1 |
| 24 October 2005 | Rodez , France | Hard | Tobias Clemens | 6–3, 6–2 |
| January 2007 | Durban , South Africa | Hard | Rik de Voest | 5–7, 6–3, 6–2 |
| 7 April 2008 | Monza Italy | Clay | Antonio Veić | 6–2, 7–5 |
| 23 June 2008 | Reggio Emilia , Italy | Clay | Pablo Andújar | 2–6, 6–2, 6–4 |
| 28 July 2008 | Tampere , Finland | Clay | Flavio Cipolla | 6–2, 6–2 |
Question:
On which surface did Mathieu play against Antonio Veić?
Answer:
Clay