I used to roll my eyes when people complained about why the trainers couldnt make sure proper stretching is done to prevent the dreaded hammy pull. From a layman perspective it just seems like it can be prevented. I guess not.
These guys are better at football than most any of us are at our professions. Could you imagine being scrutinized online for everything you do in practice? Reading a detailed analysis of every pass attempt in practice to receivers made me realize how silly it has become.