Alexander Zverev, the world No. 2-ranked tennis player, has withdrawn from the United Cup due to a bicep strain. Scheduled to play in Perth's quarterfinals, he was replaced by Daniel Masur. Zverev's withdrawal comes just weeks before the Australian Open,

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.

World No. 2-ranked Alexander Zverev, 27, who won his opening two singles matches of the season, 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.

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.

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.