help with baseball stuff by 9:30

I love the fact that the Yankees are playing the Sox. I love the fact that today, in my classroom, it would be academically appropriate and fun to make posters in Spanish cheering on each team (well, it's heavily favored Red Sox country here, but I will give them a choice.)

I need appropriate slogans in Spanish. Help me, please.

You know, "go, team, go" type stuff.