Soccer should be played with a dry field and ball so no one slips.
And swim meets should happen in dry conditions too, so there's no chance of getting cold or drowning.
Golf balls and baseballs should be coated in cotton so that they don't injure anyone.
Spiking the ball should be prohibited in Volleyball.
American football should become a non-contact sport, to reduce injuries.
Wrestlers should be disqualified if their opponents get mat burns.
Saddles used in Equestrian Dressage should include safety belts.
Figure skaters should wear helmets, along with knee and elbow pads.
All hockey players should wear protective masks, like the goalies.