Holger Rune of Denmark toppled No. 8 seed Zizou Bergs of Belgium 6-3, 6-4 in the first round of the Bybit Stockholm Open on Tuesday in Sweden.
Rune, 23, ruptured...
Reilly Opelka and Brandon Nakashima won their respective singles matches before Austin Krajicek and Rajeev Ram teamed up to polish off the United States'...