The wayfutsalis played makes it a very powerful tool to help soccer players better develop their skills.

Since it's played on a smaller pitch at a faster pace than soccer, futsal players need to develop playing techniques that will allow them to focus on quick reactions and small-ball situations that are certainly very interesting for playing soccer too.

Those small-ball situations are deciding factors in a soccer game. 

Because futsal is played in a smaller area than soccer, with fewer players on the court, tight playing situations force players to think and make decisions quickly, since they have to predict and foresee where the ball will go, or which opponent to cover. Developing quick thinking is a valuable asset for soccer players too.

Typical one-on-one situations in futsal require a great deal of precision. In a soccer game, that is also a deciding factor.

Creativity and agility are also interesting characteristics of futsal. The fact that players have to resolve situations in a reduced area makes them develop and enhance their agility and the creative execution of their skills.
During a futsal match or training session, each player is likely to touch the ball more frequently than they would in a soccer match. You can imagine how beneficial this can be for a soccer player who considers futsal as a tool to enhance his or her performance.

Advanced soccer players training futsal once or twice a week will certainly improve their skills and take their performance to the next level.