Vastus Medialis stretch

I feel my V. Medialis - the medial side of my Quads - is too tight on my right leg.

I feel the shearing forces acting on my knee as result of this tightness has led to knee pain on the left side of my knee, underneath the kneecap.

I want to try stretching the V. Medialis (along with all muscles in my legs - plyos will shorten a the hammies like noone’s business) and see if it helps get rid of this tension, and subsequently, get rid of this pinch I get when running.