India, Oct. 5 -- Shocking scenes unfolded at the China Open on Monday as Daniil Medvedev was disqualified from his semifinal against Novak Djokovic after striking a spectator in the face with a ball.

The dramatic incident abruptly ended their high-voltage contest on Diamond Court in Beijing.

With Djokovic serving for the match at 7-5, 5-3, Medvedev smacked a ball into the stands in frustration, forcing tournament officials to issue an immediate default.

The Moment Medvedev Lost His Cool

The controversy erupted in the ninth game of the second set with Djokovic standing just two points away from the final at 15-15.

Having battled for over two hours, Medvedev lost an exhausting baseline exchange and let his emotions boil over.

In a mom...