Baseball is hugely popular in the United States of America, where it is considered a national sport and is watched by millions of people from all over the country.  Baseball has also received mass popularity in a few other parts of the world, including Japan, Cuba, and Canada, as well as a small following in a number of other countries.  Along with the highly successful American baseball leagues, there are also a number of successful European leagues, including those in the Netherlands and Italy (although these do not reach anywhere near the same level of popularity).  While the lack of wide ranging global support has recently seen baseball dropped from the 2012 Summer Olympic Games, within its native and adopted countries it is more popular than ever before.  While baseball may not be the most athletically demanding of sports, its players still regularly suffer from injuries and physical stress.

Professional baseball players are often paid large sums of money, and have to endure a lot of physical and mental pressure to perform for their teams.  Injury is a big concern for many professional players, many of whom battle specific injuries throughout their careers and have to suffer from the after effects of these injuries when they retire.  Large American teams like the Red Sox and the New York Yankees employ doctors, physiotherapists, and masseurs in order to make sure that their players are always as fresh and ready to play as possible.  Whirlpools and spa baths are sometimes used by professional teams to help them cope with these injuries, so that players can relax their muscles and joints after games and training sessions.

Water therapy, or balneotherapy, is used in a number of different contexts – from its use in mainstream medicine for rehabilitation and skin treatment, to its use in alternative therapies and practices.  Spa and Hot tub baths are often used by doctors in the rehabilitation of patients who have damaged muscle tissue, making them ideal for use in the fields of sports medicine and fitness.  For many big name baseball players who are suffering from small ongoing injuries and physical complaints, spa baths and Whirlpools are one of the things that are able to keep them playing, week after week and season after season.