The upper body - front
It is not necessarily about having a six-pack, but physical activity needs strong abdominal muscles. This includes playing football of course! Well trained stomach muscles help you perform better and can prevent some football injuries.
Cristiano Ronaldo's game is based on using power as well as skill.
The muscles of the chest are in the part of the body which is lower than the neck, but higher than the abdominal region; they include the muscles of the shoulders. These muscles are essential because they control many motions that involve moving the arms and head — such as throwing a ball, looking up at the sky, and raising your hand.
This is done by the Pectoralis muscles, which are the main muscles in the upper chest. The Biceps aids that, but additionally controls the bending of the elbow.
Breathing is also controlled by the muscles, such as the Rectus Abdominis muscles, that are connected to the ribs of the upper back. In addition to the External Oblique Muscles, they also help to rotate the spine and strengthen the torso.
Anterior Flexor Muscles are also included in the upper torso muscles; their primary purpose is to flex the wrist and fingers.
In football, injuries to those muscles are rare and usually not severe. Most times, the players can continue to train; however, it is different for goalkeepers due to their position.