At 21:00 Beijing time on November 6, 2021, the first semi-final of the World Snooker England Open will officially open, and Robertson will face the strong returning Mark King in this game. In the second semi-final at 3:00 a.m. on November 7, Higgins will also compete with O'Sullivan for tickets to the final. Judging by the players' record of playing against each other and the recent state of the competition, Robertson is likely to meet O'Sullivan again in the final. Although Mark King had a good performance in the previous game, he did not face the players who had robertson's competitive status. In the contest between Higgins and O'Sullivan, O'Sullivan had the advantage in energy.

Mark King was afraid to prevent Robertson from advancing to the final
Mark King and Neil Robertson are both left-handed players, so their matches are also hailed as a duel of accuracy. The two players have a record of 11 encounters in the past, with Robertson having a clear upper hand with 8 wins, 2 draws and 1 loss. It is worth mentioning that Mark King's only victory over Robertson was only in the game of grabbing three, and mark King did not beat Robertson once. So in terms of psychology, Robertson clearly has an advantage. Judging from the recent competitive status of the two players, Mark King's competitive status is significantly inferior to Robertson's, especially in the quarter-finals. If Robertson's opponent is replaced by Mark King, I am afraid that Mark King will not have a chance to advance. So from a comprehensive point of view, Robertson is more likely to advance.
Higgins' physical impairment prevented O'Sullivan from advancing
In the just-concluded Quarterfinals of the English Open, Higgins and Yan Bingtao played a very poor quality match in the game, and only Higgins played a 50+ performance. In this game, Higgins' physical strength and energy can be described as a serious challenge. Unlike Higgins, O'Sullivan didn't expend much energy and stamina in the match against Brechel, and he even played an average of 16.8 seconds, and the game ended in about an hour. The game between Yan Bingtao and Higgins started at three o'clock and played until more than seven o'clock, and it was not easy for a player over 46 years old to recover his strength quickly. Coupled with Higgins' sluggish performance against Yan Bingtao, it is indeed very difficult for him to beat O'Sullivan. So this game, I think O'Sullivan has a better chance of advancing to the final.
O'Sullivan Robertson is expected to meet again in the division final
In terms of objective performance and competitive status, O'Sullivan and Robertson have a good chance of advancing to the final, but after all, there is a certain degree of accident in the game, and everything may happen until the end. Of the current final four players, only O'Sullivan is the only one to have won the English Open. So far, the English Open has not even seen a player who has won the championship twice. If O'Sullivan and Robertson meet in the final, there will be a good chance that Robertson will become a champion winner. If that's the case, then the English Open will have a new title. But before that, Robertson needs to beat Mark King, and O'Sullivan needs to beat Higgins to reach the final. Judging by Robertson's current competitive state, his chances of reaching the final are really high. There is still a variable in the match between O'Sullivan and Higgins, and that is O'Sullivan's patience. But even so, I think O'Sullivan and Robertson are more likely to meet in the final than others, after all, the ability of these two players is currently the best in the final four.