It came as a shock as the Nigeria Table Tennis player caused a huge upset by outclassing 5th seeded player in the game Chih Yuan Chuang with a shocking 4-0 win in the men’s singles event at the Rio 2016 Olympics.

Quadri achieved this result after beating Slovakia’s Wang Yang 4-2 in round 2,the result was more shocking seeing how Quadri won the game, he won the game effectively in a straight set of 11-6,12-10,11-6 and 11-7, without chan winning a game.

Quadri remains the only African player left both in the Men and Women’s singles.

source: http://www.nuelsblog.com/2016/08/aruna-quadri-qualify-for-round-4-of.html

Thought he's to player a german of a higher rank