Hi all, Not sure if I'm posting this in the right section. I've been experiencing pain in the middle of my left knee cap for a couple of months, it seems to have improved after strengthening as well as cutting down the number of times I play. Would like to get a knee support/guard for extra support and stability, but there's too many different types available (ie. open/closed patella, velcro or a slip in kind), whats the difference between these type of knee guard? And if I'm using it specifically for badminton, do I have to buy a sports knee guard instead? Would appreciate if anyone could give me some advise. Regards.