Cristiano Ronaldo faces investigation for gesture towards fans chanting for Lionel Messi.

Cristiano Ronaldo may be investigated for an 'obscene gesture' he made towards fans chanting Lionel Messi's name after Al-Nassr's 3-2 win over Al Shabab.

Ronaldo, who scored a penalty during the match, was seen cupping his ear and making a hand gesture near his pelvic area after the final whistle.

📸 (Images via getty images)