You want to be fast? You want to be strong when fighting for the ball? You want an injury-free season? Then you should strongly consider working on your Core muscles. All the muscles in the mid-section of your body are muscles that support other muscles when they are producing force. If your abdomen and your spine are weak, energy is lost. That means you are slower and weaker than you could be, even if you have well-developed legs for example (in terms of running performance).
The other thing that you need to be aware of is the gain in terms of injury prevention. Not only weak core muscles are at danger when you practice, but as they are a kind of ”fixing” point for other muscles, they potentially put your whole body at risk.
To summarize, including a 15 minutes core workout session at least 2 times a week will allow you to perform better and will help you stay away from injuries. During the pre-season period, the focus on this type of training should be even bigger.
Watch the video to see what exercises you can use: