Joseph drank liquids while playing football, but he is going to need another mineral in his body so that his muscles will not cramp. what mineral is this?

Potassium

Potassium is a mineral present in food that helps in a series of important body functions such as muscle contractions, nerve impulses, digestion and normal water balance. Consumption of the right balance of potassium-rich foods and beverages supplies the body the potassium it requires as it does not produce potassium by itself naturally. Consumption of too little or too much potassium can lead to serious health problems.

oxygen +1 most likely