Football's Insane 'Blue Card' Rule Explained

IFAB are introducing a "Blue Card" to top-level football and could begin elite trials as early as this summer.

In an attempt to curb what they perceive as 'cheating', referees will now have the power to temporarily send players off.

But how will this work in practice, when could we see it in the Premier League, and would this even work in the first place?

FourFourTwo's Adam Clery takes a minute to compose himself, and explains.