While the rally continued, it was eventually finished off by a perfect volley from Bopanna, who deservingly earned the applause from the crowd.
Although Thiem had 100% accuracy while winning point on the 2nd serve, Zverev was adamant on making Thiem run around the entire court for points.
Alexander Zverev dumped Rafael Nadal out of the Madrid Open on Friday and the Spanish icon was at a loss to explain how it happened.
Rafael Nadal will get his Madrid Open campaign started against teenaged wildcard Carlos Alcaraz.
World number one Novak Djokovic will not defend his title at the Caja Magica next week.
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