Roar of Sac Macro

Hi,
Does anyone have a macro to cast roar of sacrifice on one's self without deselecting your enemy target?

Or can some tell me how to make a macro re-target the last enemy target after casting it on myself?
#showtooltip
/cast [@player] Roar of Sacrifice
Hurray!

Thanks a ton
np...
Though you might like
#showtooltip
/cast [target=mouseover,exists][@player] Roar of Sacrifice

more

It prioritizes your mouseover so that you can use it on a teammate who's getting pressured.