Shaquille O'Neal's two-meter plus frame means he has never been one for flying under the radar.

But the giant former basketball star has courted controversy after revealing he is a '9/11 truther'.

A recent post on his personal website has questioned the established version of the events of September 11, namely that the attacks were planned and carried out by Osama Bin Laden and al Qaeda operatives.

Truther: A post on Shaquille O'Neal's website questioned the established version of events on the 911 terror attacks

The post includes the slow-motion viral video of the second jet flying into the south tower on Sept. 11, 2001.

It apparently shows 'two impossibilities' supporting the conspiracy theory that the attack on the World Trade Centre may have been an 'inside job,' the New York Post reports.

'Supposedly the materials that the buildings are made of wouldn't allow a plane to slice through it as cleanly as Flight 175 did,' the site ­contends.

Controversial: The post questioning the World Trade Center attacks has provoked an angry response from many

The NBA champion also linked the post to his Facebook page and asked: 'This might make you think twice . . . what do you think?'