One study shows a lack of ankle dorsiflexion range is associated with patellar tendinopathy. Study here: https://portal.findresearcher.sdu.dk/...

Another study shows ankle sprains are correlated with this lack of ankle dorsiflexion. Study here: https://pubmed.ncbi.nlm.nih.gov/21917...

Hit daily isometrics (single leg stand and iso lunge) to “Rewire” the ankle with the brain and hip. Over time, this should clear up issues at the ankle and open up dorsiflexion range (maybe because the brain feels safe to allow for it) without stretching.

The Scientific Framework behind Jumper's Knee: https://jackedathlete.com/jumpersknee...

The best Patellar Tendon Training Program in existence: https://jackedathlete.com/jumpersknee...