Understanding energy balance helps players avoid these problems

Calories you burn in training and playing matches need to be in line with the calories you get from the food you intake. Monitoring your eating habits and training intensity (load) can help avoid unwanted weight loss or gain. 

https://www.football4football.com/storage/img/articleimages/originals/2I9V6dLBwgmkjdBVe5uBPieEEby0tag0MCT.jpg NO HIDING: Simple skin-fold tests can give quick feedback during pre-season testing.