guys.. any advice on how to avoid cramps besides drinking a lot , stretching and taking potassium and magnesium supplements ? would maybe hot and cold showers after playing be good ..? i.e. to get the circulation up and rid out possible residue and lactic acid and other problem realted substances in the muscles.. dont have a jacuzzi but have a poll near by .. can swimming help a lot ? alos in order to get fresah if one plays successive days , what is a good routine to try to stay 'springy ' and not fizzle out too much .. i tried too go for short runs a few hours before getting on court although my body and legs especially said 'no can do' and that was initially painfully but seemed to loosen it all up a bit.