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:
| Name | Position | From (Club) | Date Joined | Debut |
| --- | --- | --- | --- | --- |
| Noel Spencer | Midfield | Sydney FC | 7 May 2007 | Round 1 |
| Adam Griffiths | Defender | Brentford | 17 May 2007 | Round 1 |
| Jorge Drovandi | Forward | Rosario Central | 2 August 2007 | Round 1 |
| Denni | Midfield | Santo André | 17 August 2007 | Round 1 |
| Scott Tunbridge | Forward | Hamilton Academical | 4 July 2007 | Round 11 |
| Mário Jardel | Forward | Anorthosis | 13 August 2007 | Round 4 |
| Ben McNamara | Goalkeeper | Lake Macquarie City | 18 August 2007 | Uncapped |
| Jason Hoffman | Forward | Hamilton Olympic | 30 August 2007 | Round 2 |
| Stephen Laybutt | Defender | Gent | 30 August 2007 | Round 6 |
| James Holland | Midfield | AIS | 14 October 2007 | Round 8 |
| Ben Kantarovski | Midfield | Broadmeadow Magic | 12 January 2008 | Uncapped |
| Song Jin-Hyung | Midfield | FC Seoul | 18 January 2008 | Semi Final (2nd leg) |
Question:
What position had a debut in round 6?
Answer:
Defender