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:
| Player | Int'l Debut | Year | Cross Code Debut | Date | Position |
| --- | --- | --- | --- | --- | --- |
| Dally Messenger | 2nd RU Test Australia v New Zealand | 1907 | RL New Zealand v Wales | 1 Jan 1908 | Centre |
| Frederick Stanley Jackson | RU British Lions tour of Australasia | 1908 | New Zealand v Great Britain | 1910 | Back |
| Emosi Koloto | RU Test Tonga v Wales | 12 June 1986 | RL New Zealand v ? | 1991 | Forward |
| John Schuster | RU Test New Zealand v Australia | 3 July 1988 | RL Western Samoa v France | 5 Sept 1995 | Back |
| Va'aiga Tuigamala | RWC New Zealand v USA | 1991 | RLWC Western Samoa v France | 12 Oct 1995 | Back |
| Henry Paul | RL Test New Zealand v France | 1995 | RU England v France | 2 Mar 2002 | Back |
| Michael Horak | RL South Africa v ? | 1997? | RU England v Argentina | 22 June 2002 | Back |
| Lote Tuqiri | RLWC Fiji v Russia | 2000 | 1st RU Test Australia v Ireland | 7 June 2003 | Winger |
| Coenraad Breytenbach | RLWC South Africa v Tonga | 2000 | Russia v Georgia | 2002 | Centre |
| Brad Thorn | RL Australia v New Zealand | 1997 | RU New Zealand v Wales | 21 June 2003 | Forward |
| Maurie Fa'asavalu | Rugby Union Samoa v South Africa | 6 July 2002 | RL Test Great Britain v New Zealand | 27 Oct 2007 | Forward |
| Lesley Vainikolo | RL ANZAC Test New Zealand v Australia | 1999 | RU England v Wales | 2 Feb 2008 | Wing |
| Craig Gower | SL Test Australia v New Zealand | 1997 | RU Test Italy v Australia | 13 June 2009 | Fly-half / five eighth |
| Shontayne Hape | RL Tri-Nations Test New Zealand v Great Britain | 20 Nov 2004 | RU Test England v Australia | 12 June 2010 | Back |
| Tasesa Lavea | RL ANZAC Test New Zealand v Australia | 2000 | RU Samoa v Ireland | 13 Nov 2010 | Back |
| Cooper Vuna | RL Tonga v ?? | 2008 | RU Australia v Wales | 09 Jun 2012 | Back |
Question:
What was the Int'l Debut for a player in the back position, that also had a Cross Code Debut of RU Australia v Wales?
Answer:
RL Tonga v ??