Here's a MYTH. Stretching before a game makes injuries in the game less likely. IRL, yes. In TE, my guy got a 5 day injury from stretching last night.
I always knew stretching could cause an injury. Well, not always, but since it happened the first time. It's just a 10/3 training option (in addition to the 20/6, 30/9 and 60/18, the latter available in web app only) with an arbitrary label. Now, if I knew that each training option has the exact same chance of injury, I would stick with "practice match" for 30/9 gain or "practice match on hard" for 60/18 gain. But Nordeus warns us that training on hard has a higher chance of injury. By that rationale, the lightest training option should have the lowest chance of injury. In practice, this is my second injury (and a severe one) from stretching. I don't recall how many injuries I got from "practice match" or "cardio", but not many more. Perhaps the injuries from stretching just stick with you more because it seems so unfair.
This has nothing to do with TE mechanics, but I wonder if IRL it is possible to get an injury from stretching.