I have heard on the radio many times, in fact the last time was about 5 minutes ago, that the Steelers have very heated pool matches daily in their locker room/lounge area. The guys on the radio were playing an after practice interview and they mentioned that all the noise in the background was an intense pool match. They have mentioned this many times.
The Steelers, as probably with most teams, also have intense dart games, card games, etc.They say most the players are very competitive at many games!
KP