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...
Marcos Giron knocked out defending champion Francisco Cerundolo in first-round action Monday at the Rothesay International in Eastbourne, England.
Giron edged the No. 5 seed...