The exact reason of this was:
- Zhang Wuji nominated Fan Yao as a challenger.
- Kong Zhi recognizes him as Ku Da Shi (the mute Fan Yao) as his previous captor and challenged him to a fight.
- Fan Yao responds and says that he'll fight him another day because he has orders and organizes a follow up date to fight Kong Zhi.
- Kong Zhi gets annoyed and taunts the Ming Clan and asks "Really! You have so many so-called experts but only you who can fight me?"
- Yin Tian Zheng gets annoyed and puts himself in the 3v3 claiming that if Shaolin has old warriors, then the Ming Clan does as well and the rest is history