The Pirates and the Reds don't like each other.
You may recall their July 30, benches-clearing brawl that resulted in six suspensions to players as well as suspensions to Reds manager David Bell and Pirates manager Clint Hurdle:
Depending on your views of such things, you either thought that incident was amazing and fun or horrible and unfit for the sport.
Regardless, it all makes for a major storyline as the two teams come into Friday night's matchup at PNC Park. While they did finish out that game above and another game to round out the series in Cincinnati back in late July, tonight's showdown marks the first time the two teams have squared off since those resulting suspensions were handed out and served.