Wilson US Open Extra Duty Tennis Balls - 24 Can Case Duffle As the string of choice

As the string of choice for Sascha Zverev

Razor Code provides all-around performance making it a great choice for advanced players that want feel from a polyester string

Head Boom Pro Tennis Racquet Specs:

allowing it to maintain its lighter weight

Wilson US Open Extra Duty Tennis Balls - 24 Can Case Duffle As the string of choiceThe Official Ball of the US Open, Wilson US Open Extra Duty Balls are made with premium quality industrial felt and designed for optimal performance and durability on hard courts. Wilson has been the 'Official Ball of the US Open' since 1979 and continues to produce one of the most recognized and relied upon tennis balls in the world. Known for quality, durability and performance, Wilson US Open Extra Duty Tennis Balls are approved by the USTA and