Technically speaking there is no correlation between stretching and sports performance or injury prevention (assuming youâ€™re not a gymnast or a hockey goalie that needs hyper flexibility).
Foam rolling has been shown to increase flexibility at least as much as proper static stretching, and can be done on cold muscles.
Foam rolling in apparently healthy adults has no (or at least very little) risk of injury provided there isnâ€™t some underlying conditions that would result in such like easy bruising in anemia or osteoporosis.
Overlooked area of training the psychology of it. If it makes you feel better (which with everyone Iâ€™ve ever worked with or known that has foam rolled it does) do it. Itâ€™s so low risk might as well have fun with it. I always feel like a new man when I get up.
I was about to say in regards to the stretching - I was a gymnast for over 15 years...and if you didnt stretch - you got hurt haha but then I read the last part of your sentence. Well played lol