Polo taken. The official set of rules and rules interpretations are reviewed and published annually by each country's polo association. Most of the smaller associations follow the rules of the Hurlingham Polo Association, the national governing body of the sport of polo in the United Kingdom, and the United States Polo Association. Outdoor or field polo consists of four to eight 7-minute chukkas, between or during which players change mounts. At the end of each 7 minute chukka, play continues for an additional 30 seconds or until a stoppage in play, whichever comes first. There is a four-minute interval between chukkas
Polo shirt it was in common usage in the U.S. to describe the shirt most commonly thought of as part of formal tennis attire. Indeed, tennis players often would refer to their shirt as a "polo shirt", notwithstanding the fact that their sport had used it before polo did. In 1972, Ralph Lauren included his "polo shirt" as a prominent part of his original line Polo, thereby helping further its already widespread popularity. While not specifically designed for use by polo players, Lauren's shirt imitated what by that time had become the normal attire for polo players. As he desired to exude