I just noticed your tagline (Those who support the troops will pray for them to WIN!).
I thought this might be interesting to you, as it offers a slightly different perspective.
The island of Tonga is a devoutly Christian state. Their National Anthem is the Hymn ‘O Mighty God’, and their national rugby team, which is one of the prides of their nation has 3 scripture readings and numerous prayer and praise times each day as part of their regular training regimen.
They do not pray for victory though, but rather that God protect them from injuries and help them to do the best that they can.
Thank you for some good to have background info.