1. Athletes are not allowed to hit people with ice hockey sticks, stab people with racket blades or pestles, or hook people with handles. No hugging, tripping, pushing with a crossbar, elbowing with a club, kicking, or interfering with the referee and staff. Offenders will be given light penalties, heavy penalties, disqualification, free kicks and other penalties depending on the circumstances.

2. Defenders can use their shoulders, chest and hips to make a reasonable collision with the attacking players who control the ball, or they can use their bodies to block it.

Therefore, one-on-one combat is not allowed!

But in fact, the occasion where one-on-one combat is prohibited is generally the Olympic Games!

Although I am not particularly keen on ice hockey, I occasionally watch NHL games. As far as I can see, hot scenes such as one-on-one combat and team battle are not uncommon in NHL.

The reason for this is to increase the antagonism and intensity of the game (violent aesthetics) and attract more audiences. It should be a hidden rule that the league, referees, coaches, players and other practitioners are well aware of, and it is for commercial purposes.

Of course, for tactical reasons, some teams may deliberately provoke fights to disturb each other's mentality and achieve the goal of winning in chaos.