Japan Open: Karatsev knocks out Tiafoe in Tokyo to reach second round

Russian Aslan Karatsev defeated American Frances Tiafoe, the No 6 seed, 6-3, 7-6 (4) to move into the second round of the Japan Open at the Ariake Colosseum in Tokyo.

Karatsev, ranked No 50, will face the winner of the match between Chinese Zhizhen Zhang and Pole Hubert Hurkacz next.

Tokyo ATP500, other first-round results (Ariake Colosseum, hard, USD 2.013.940, most recent results first):

• Zhizhen Zhang vs. Hubert Hurkacz
• Casper Ruud (2) beat Yosuke Watanuki (WC): 7-6 (6), 6-3
• Shintaro Mochizuki (WC) beat Tomas Martin Etcheverry: 6-4, 7-6 (5)
• Ben Shelton beat Taro Daniel (Q): 3-6, 6-4, 7-6 (2)
• Diego Schwartzman beat Francisco Cerundolo: 6-4, 6-1
• Taylor Fritz (1) beat Cameron Norrie: 6-4, 6-3
• Alexei Popyrin beat Karen Khachanov (7): 6-4, 6-2
• Alex De Minaur (4) beat Jack Draper (Q): 4-6, 7-6 (4), 7-6 (1)
• Cristian Garin (Q) beat Sho Shimabukuro (WC): 6-4, 3-6, 6-3
• Tommy Paul (5) beat Daniel Altmaier: 3-6, 6-1, 6-3
• Marcos Giron (Q) beat Yoshihito Nishioka: 7-6 (14), 4-6, 6-1
• Felix Auger-Aliassime (8) beat Aleksandar Vukic: 7-6 (3), 6-7 (2), 6-2
• Jordan Thompson beat Alexander Zverev (3): 6-3, 6-4
• Sebastian Ofner beat Christopher O’Connell: 6-7 (2), 7-6 (5), 7-5
• Mackenzie McDonald beat Max Purcell: 7-5, 6-4