Tennis - Štěpánek faces Argentine Monaco in Davis Cup opener

U.S. Open doubles champion Radek Štěpánek will face Argentina's Juan Monaco in the opening singles of the Czech Republic's Davis Cup semi-final on Friday as the defending champions bid to reach a third final in five years. World number five Tomáš Berdych will then take on Argentine Leonardo Mayer in the second of the opening day's matches in Prague.