Heineken is a Dutch beer (5% abv pale lager) which has been brewed by Heineken International since 1873. It is available in a 4.6% alcohol variety in countries such as Ireland. It is the flagship product of the Heineken company and is made of purified water, malted barley, hops, and yeast. In 1886 H. Elion finished the development of the Heineken A-yeast, which is still used in the brewing process today. The beer is force carbonated. It is popular in the United States, Australia, Hong Kong, New Zealand, Vietnam, Europe, Singapore and Middle Eastern countries.
The Citi Open is a joint professional tennis tournament played on outdoor hard courts, and held annually in late July at the William H.G. FitzGerald Tennis Center in Rock Creek Park, Washington, D.C., United States. The Citi Open is part of the ATP World Tour 500 series on the Association of Tennis Professionals World Tour, and of the WTA International tournaments on the Women's Tennis Association Tour.