Alexander Zverev to become world No 1: "I have no words"

London, Oct 30 (UNI) Alexander Zverev has just received early admission to one of tennis's most exclusive clubs. On Thursday, the German defeated Dutchman Tallon Griekspoor 6-4, 7-5 in Vienna to book his place in the quarter-finals and secure the top spot in the ATP rankings when they are updated on November 2. The milestone has been a long time coming for the 29-year-old, according to olympics.com. "It's been a wait, but sometimes you have to wait for the best things in life," said Zverev, who becomes the 30th member of the world No. 1 club, the second-oldest man and…