When does Untitled polo docuseries return?

Polo is a traditional field sport played on horseback. The game is played by two opposing teams with the objective of scoring using a long-handled wooden mallet to hit a small hard ball through the opposing team's goal. The progenitor of polo and its variants existed from the 6th century BC to the 1st century AD, as an equestrian game played by the nomadic Iranian and Turkic peoples. In Persia, where the sport evolved and developed, it was at first a training game for cavalry units, usually the royal guard or other elite troops. It is now popular around the world, with well over 100 member countries in the Federation of International Polo.