No. 2-ranked Alexander Zverev withdrew from the United Cup mixed teams tennis tournament on Wednesday with a biceps strain less than two weeks from the start of the Australian Open.

Germany's world number two Alexander Zverev pulled out of the United Cup on Wednesday with a bicep strain barely a week away from the Australian Open.

Men’s world no.2 Alexander Zverev’s Open preparations have suffered a blow, with the German forced to withdraw from Germany’s United Cup quarter-final against Kazakhstan at RAC Arena.

World No.2 Alexander Zverev won't play in Germany's quarter-final clash with Kazakhstan at the United Cup due to a biceps injury.

Alexander Zverev eased past Thiago Monteiro 6-4 6-4 as Germany beat Brazil for a winning start to their United Cup defence on Sunday while the Czech Republic, U.S. and Italy were all victorious. Zvere

Germany took a solid first step on Sunday in defence of their United Cup title with world number two Alexander Zverev and Laura Siegemund sweeping to an untouchable 2-0 scoreline over Brazil.

PERTH – World No. 2 Alexander Zverev pulled out of the United Cup on Jan 1 with a bicep strain, in what is a concern for the German star barely a week away from the Australian Open. The 27-year-old won his opening two games of the season against Brazil’s Thiago Monteiro and China’s Zheng Zhizhen.