The Doha Open is progressing intensely, with the semifinalists confirmed: top seed Alcaraz versus defending champion Rublev, and former French top player Paire, replicating last year's semifinal run, against Menchik, the Miami Masters champion from last year who halted second seed Sinner's streak.
Although Sinner has been very strong on hard courts in recent years, Menchik played well this time and decisively ended his long winning streak at a 500-level event.

Speaking of ending winning streaks, Roger Federer is the ultimate expert, with these major streak-breaking moments in his career:
1) He ended Sampras's five-year unbeaten run at Wimbledon.
This was a famous battle between successors in history. In the 2001 Wimbledon fourth round, facing defending champion and grass-court king Sampras, a young Federer with a ponytail delivered a stunning performance and defeated him. Unexpectedly, two years later, he would claim his first Grand Slam title at the All England Club.
2) He ended Nadal's 81-match winning streak on clay.
Although Federer never beat the clay king Nadal at Roland Garros despite four runner-up finishes, he broke Nadal's incredible 81-match clay winning streak at Hamburg, proving his clay-court ability ranks among the best in history.

However, despite winning Hamburg and Madrid Masters titles, he never captured the Monte Carlo or Rome Masters before retiring.
3) In 2011, he ended Djokovic's 41-match winning streak.
Djokovic's streak was the longest season-opening winning run in history. After reclaiming a Grand Slam title three years later, the Serbian star seemed unstoppable. Yet in that Roland Garros semifinal, a battle of styles, the Swiss player, who was more adept at this kind of play, emerged victorious. Many fans speculate that had Djokovic reached the final, given his win rate against Nadal there, the championship outcome was uncertain.

4) In 2014, he ended Djokovic's four-year unbeaten streak during the China season.
Honestly, by that year Federer was declining, having gone two years without a Grand Slam title. Facing his old rival, also popular in China, Federer still outplayed him to win this kingly duel. However, overall, Djokovic had better results in the China season.
Among these streak-ending matches, which one impresses you the most?(Source: Tennis Home, Author: Luo Chengqiye)