Novak Djokovic cleared a major hurdle in pursuit of a fourth Roland-Garros title, defeating No. 3 Alexander Zverev 4-6, 6-3, 6-2, 6-4 in the quarterfinals on Wednesday in Paris.

Novak Djokovic said beating Alexander Zverev on Wednesday was a "testament" to his ability to compete at the highest level as the 38-year-old reached the semi-finals at Roland Garros to inch closer to a record 25th Grand Slam title.