This muscle behind my shin and when I play soccer, I tightens up and bothers me. What is it called?

The muscle behind my shin tightens up while I play soccer. What is the muscle called? How do I keep it realaxed? or:The muscle behind my shin tightens

The muscle behind my shin tightens up while I play soccer. What is the muscle called? How do I keep it realaxed?

or:The muscle behind my shin tightens up while I play soccer. What is the muscle called? How do I keep it realaxed?

Tags:muscles,