Probably not - but it would depend on the sport, and the location of the scab.
No.
its infected
If one peels the scab off. Blood will appear again which gives bacteria the opportunity to get in. This is how the scab can get infected.
There could be many reasons that a scab on your scalp will not heal. It could be very infected for example.
A open wound is a cut or scratch or any kind of cut. When it is new or still there not covered by a scab. While its open it can get many germs or it can get infected.
If your belly button ring has a blackish scab you may have torn it or pulled it a little on your clothing. As long as there is not discharge or redness, it isn't infected.
The scab forms a seal over the cut, helps to keep germs at bay, and so lessen the chances of the cut becoming infected.
The only way rabies can be spread is if a animal infected bites or scratches you. If u think an animal is infected stay away an call for help.
It means it will be infected. Try using rubbing alchohol and then put neosporin on it
So that the big scab can grow. If the scab gets washed away, it can cause "dry socket" which is very painful and easier to get infected.
The scab - is your body's defences protecting the damaged skin and underlying tissue from contamination while it heals. The scab is formed from dry blood cells which prevents dirt getting into the cut.
It could be because you were picking at it and it started to bleed and then closed up. It could be because it was infected and is now healing. It's not a terrible thing if the scab is healing well. Just don't touch it.