Very normal, the setting in the Romance of the Three Kingdoms, Zhang Fei's martial arts were originally higher than Guan Yu's.
The Three Kingdoms believed that the strongest martial artist was Lü Bu, but in the Tiger Prison Pass, Zhang Fei played more than 100 rounds with him, regardless of victory or defeat. More than 100 rounds, that's pretty much it. Therefore, Zhang Fei has always disobeyed Lü Bu and will single out with him at every turn.
When Guan Yu was in Cao Ying, he cut off his face and cursed Wen Ugly, and everyone obeyed the ground, but Guan Yu said: My martial arts are not as good as the third brother, he is the first rank of general in the million army, such as probing bags to take things. This is what Guan Yu himself said. With his temper, it is impossible to obey anyone, even at the same level. Guan Yuming said that Zhang Fei was stronger than him, and that must be stronger than him. Moreover, with Guan Yu's temper, Zhang Fei's ability must be very strong, and he can worship Zhang Fei as a brother and willingly rank around Liu Bei.
Even if he was a brother, Guan Yu couldn't degrade himself and lift Zhang Fei. Only Guan Yu really thought that Zhang Fei was stronger than him.
And that's the reality.
Guan Yu's martial arts are actually the same as Cheng Biting Jin, just like three axes. Guan Yu kills people in the first three moves, one round, two rounds to kill people. All he did was raids. Yan Liangwen ugly these people, were all coldly rushed by Guan Yu and killed with one knife and two knives. However, as long as there are more than three moves, Guan Yu basically can't kill anyone.
Pound and Xu Huang have played dozens of rounds, regardless of victory or defeat. This is also very normal, Guan Yu has been in Cao Ying for a long time, and has also had a lot of dealings with the generals of Cao Ying, when he fights, he is often looked at by Cao Ying's generals, and he has a very good relationship with Zhang Liao and Xu Huang. Therefore, after a long time, Guan Yu's three swords were not unusual in the eyes of Cao Ying's generals. Mentally prepared, carrying the first three knives, Guan Yu was basically helpless.
In the entire Three Kingdoms, after the three moves, Guan Yu only killed people once, and the Yellow Turban Army's Guan Was horrified. Guan Yu's martial arts are relatively evil. Huang Zhong was in Dingjun Mountain, raided and killed Xiahou Yuan, whether he learned Guan Yu's sword technique, it is difficult to say.
Zhang Fei, Zhao Yun, and Ma Chao are all strong, their abilities are relatively stable, and even they are getting stronger and stronger, which is not a way to fight with Guan Yu at all.
We can quantify that Guan Yu's first three rounds, the combat strength is 90 points, after the fourth round, it will fall to 80 points.
As the number one general under Yuan Shu, Ji Ling's ability will not be too bad, his combat strength is 85 points, but he has always been 85 points. He and Guan Yu fought, the first three knives, very dangerous, there is a 5-point disadvantage, but the disadvantage is not too big, causing him to carry over. After three knives, he had a 5-point advantage, but it was not enough to beat Guan Yu. So the two of them fought hard for thirty rounds.
Zhang Fei is different, he is stronger than Guan Yu, where is he stronger? He has always maintained a 90-point combat strength. Always maintain a 5-point advantage over Ji Ling. Ji Ling and Guan Yu fight, the first three rounds are very dangerous, and the fourth round starts, there is no risk. And Zhang Feida, the risk has always existed, and the pressure has always been there. The third round is not dead, the fourth round, the fifth round... By the tenth round, it was necessary to die.
Probability problems.
Ji Ling was in Guan Yu's place, taking three risks, and probably not dying. Three times do not die, and after that, even thirty times, there is no risk. But when it came to Zhang Feina, he had to take risks all the time, take risks again and again, take ten risks, and once he made a mistake, he was finished.
Changsaka Slope, Zhao Yun killed seven in and seven out, changed Guan Yu, absolutely not. Defeated Maicheng, replaced by Zhao Yun and Zhang Fei, and could not die. Can kill out, have long strength. Of course, this is in the literal sense.