Just 3% of the "nones" call themselves atheists, a small bump from 2007, when 1.5% did the same.

CNN: Millennials leaving church in droves, study says

The incident is thought to have been sparked by the sending off Nones for alleged eye gouging when the two teams met in Wales last year.

BBC: Club calls for inquiry into flare-up

People who profess no faith affiliation -- often called "nones, " as in "none of the above" -- now form nearly 23% percent of the country's adult population, according to the Pew study.

CNN: Millennials leaving church in droves, study says