My right anterior hip, more specifically in the region of iliacus, pectineus, basically in the adductor group, has some irritation, almost like an impinged feeling when in deep flexion with external rotated and abducted.  I feel it when I sit in a middle split and times when I random lift leg.  If I were to press on my quad and try to pull my knee to my chest I would feel the irritation.  Deep squatting aggravates it as well.