In the early morning of April 22, Beijing time, the ATP250 Serbia Open quarterfinals began to compete, and djokovic, the top seed of the tournament, ushered in the challenge of compatriot Kezmanovic. The two sides had a one-time clash in the quarter-finals of the tournament last year, when Djokovic won in two straight sets. Today's game was a fierce three-set battle between the two sides, and Djokovic reversed it with the first set to knock out his opponent 2-1, reaching the final four for the first time on the Tour this season.

In the first set, Djokovic was broken by his opponent in the 3rd set, and in the 5th set, Djokovic was once again forced into a desperate situation, and he saved 5 break points to stubbornly save serves. In the 10th set, Kazmanovic saved the set and won the first set 6-4.
In the second set, Djokovic was broken by his opponent in the 3rd set, followed by a quick break by Djokovic in the 4th set. In the 8th set, Djokovic completed a key break on the opponent's serve and came to win the set 5-3. In the 9th set, Djokovic saved his serve and won the second set 6-3.
In the first six sets of the decider, the two sides successfully saved their own serves, with Djokovic taking the lead in the 7th set and Djokovic successfully holding the serve in the 8th set, bringing the match into a set where there was no way back. In the 9th set, Kezmanovic lost again on the serve and Djokovic won the decider 6-3.
In the end, in a match that took 2 hours and 18 minutes, djokovic Djokovic, the top seed of the tournament, defeated his compatriot Kazmanovic 4-6, 6-3, 6-3 to advance to the final four of the tournament. This is Deyo's first semi-final on the Tour this season, and his opponent in the next round will be No. 3 seed Khachanov, who eliminated Monteiro, who broke through from the qualifiers.