ISIS face their biggest threat ever - the HULK: Giant 24-stone bodybuilder announces he will fight alongside Iranian military taking on Islamic State

Sajad Gharibi, 24, from Iran has told his 127,000 followers on Instagram that he is to join Iranian forces to fight ISIS in Syria by adding his considerable bulk to the efforts as a volunteer soldier. The man mountain can lift more than 180kg and has wowed his cult social media following with gob-smacking topless photos, like the ones pictured, and posts of him doing what he does best - weightlifting.