Provide the theme summaries for the following conversation: 

#Person1#: Hello baseball fans, and welcome back to today's game! My name is Rick Fields and of course, I am here, once again, with the man that seals the deal, Bob Copeland. '
#Person2#: It's a beautiful day to see two world class teams face each other and fight for their right to be called champions.
#Person1#: Well, the national anthem has just been sung, and the umpire has started the game. It's time to play ball!
#Person2#: Roger Vargas is up at bat. The pitcher winds up and strike one!
#Person1#: A very nice curve ball by the pitcher. The catcher gives him the sign, he winds up and Vargas gets a line drive!
#Person2#: The players are scrambling to get the ball. Vargas gets to first base and he's still going! The outfielder throws it to second! Vargas slides! He's safe!
#Person1#: Great play!
#Person2#: We have a runner on third and up at bat is Brian Okapi! There's the pitch, he hits it! It's going, going, that ball is gone!
#Person1#: Home run by Okapi! That puts this team ahead by two as we are at the bottom of the fifth inning here at Richie Stadium!

Summary: 
Rick Fields and Bob Copeland are doing the commentary for an exciting baseball match between two world-class teams at Richie Stadium.