Squash players are famous for their post-match recovery, but it's more on the "social" side of aisle š«£š¬.
Here's a really great stretch if you're interested in adding a bit of freedom into your knees and hips. I've added this - along with 3 other stretches - after every training session, and it's a bona fide winner. It's low effort, high reward.
*Hold for 60 sec each side.
*Repeat more than once if you like how it feels.
*Use a folded towel if you can't track down a yoga block.
*You can kneel on a padded chair or bench instead, but it'll take more effort (which I don't love spending after I'm done).
Enjoy!