In the early morning of April 16, Beijing time, the ATP1000 Monte Carlo Masters men's singles quarterfinals began to compete, and the No. 2 seed Zverev met the No. 9 seed Sinar. The two sides have met three times before, and Zverev has the upper hand with 2 wins and 1 loss. In today's match, the two sides fought fiercely in three sets, and Zverev staged a reversal after losing the first set, narrowly winning 2-1 to advance to the final four.
In the first set Zverev took the lead in the 4th set to complete the break, and Sina broke successfully in the 7th set before holding the serve to 4-4. In the crucial 11th inning, Sinar successfully cashed in on the fourth break point and came to serve to win the set 6-5. In the 12th set, Sina love game saved and won the first set 7-5.
In the second set, Sina broke first in the 3rd set, and Zverev quickly broke back in the 4th set. In the 8th set Zverev completed a key break and came to serve 5-3 to win the set. In the 9th set Zverev managed to save the game and drag the score 6-3 into the decider.
In the decider, the two broke each other's serves in the 3rd and 4th innings, and Zverev broke again in the 7th set before holding the serve to take a 5-3 lead. In the 10th set, Sina broke the opponent's serve to win the game, chasing the set to 5-5. After that, both sides saved their own serves, and the decisive set was dragged into the seventh. After grabbing seven sets 5-5, Zverev scored two consecutive points to win the tiebreaker seven 7-5.
In the end, in a match that took 3 hours and 7 minutes, the No. 2 seed Zverev defeated the 9th seed Sinar 5-7, 6-3, 7-6 (5) to successfully reach the final four of the Monte Carlo Masters. This is Zverev's second time in Monte Carlo after 2018 that he has reached the final four and the 13th Masters final four of his career. Zverev will face a challenge from defending champion Tsitsipas in the semi-finals.