Tensor strain dilemna

Hi. does anyone know how my left tensor muscle is inflamed? No impact on it, just chronic strain after doing strenuous football workouts, especially sprints. Started after a diagonal running routine. I recently recovered from a lateral knee lig. tear on same side. Also have a little pronation of left foot. Alignment of pelvis is pretty good. Could it be that during rehab of knee, I favored the leg and weakened the affected side tensor? It’s a bummer.