Probably many newbies will be surprised, but in a casino, like in a theater or a restaurant, there is a set of unspoken rules that are not necessary but are desirable to be followed. Of course, they aren't so essential for those who gamble...

The sport of tennis has changed drastically over the last few decades, with the introduction of various innovations ranging from advances in equipment and technology to changes in playing rules. These technological advancements have created both opportunities and challenges for players, coaches, and fans...