The prize includes two nights accommodation, flights, transfers and match tickets to game for four people.
To be in with a chance to win the prize, all you have to do is correctly predict the final score in the game between Leinster and Munster this Saturday.
All correct predictions will be entered into a draw for the star prize and there will also be chances to win runner-up prizes including one-year subscriptions to Setanta Sports as well as Leinster and Munster jerseys.
There are three ways to enter:
2. You can email email@example.com with the same details as above.
3. Or you can enter on www.setanta.com/battle.
To help launch the competition, former Munster lock Donal Lenihan, Liam Toland, who played for both Leinster and Munster, and ex-Leinster lock Neil Francis took to the RDS pitch today to mull over their score predictions and pose for photographers.
Saturday's Magners League derby clash between Leinster and Munster will be broadcast live on Setanta Sports 1, with coverage starting at 5.30pm. Kick-off is at 6.30pm.