Stefanos Tsitsipas (No. 12 in the world) takes on Mattia Bellucci (No. 92) in the quarterfinals at the ABN AMRO World Tennis ...
Fritz is far from the only player on the ATP Tour who is unhappy with the quality of tennis balls over the past few years.
There are six matches at the ABN AMRO World Tennis Tournament today, highlighted by No. 44-ranked Pedro Martinez versus No.