I know this may sound weird, but the adductors correspond with the inside part of the tibiotalar joint (the highest part of the ankle). It's a Z-Health thing...
I'd highly suggest you work the foot drills
into your warmups, particularly the drill where your feet are everted (walking on the inside edge of the feet). You might even want to do that one twice.
The windmill exercise
is a good one for both strengthening and stretching the inner thigh muscles in a functional manner.
Also, on the windmill note, the triangle pose from yoga
is also good. There is stuff for the beginner variations lower on the page.
Take your approach to the windmill and triangle pose cautiously, since your muscles are known to be a little dodgy in that particular area...
MOD's suggestion of around-the-clock lunges is a good one.
Hope something in there resonates!