The Hero Call is a spectacular showpiece move in the arsenal of a poker player.
Just like a goalkeeper deflecting an unsaveable ball in football, poker players can save a hand from a hopeless-looking situation by simply calling.
You don't always need a monster to invest your entire stack. A second or third pair - or sometimes even just ace-high - is enough to expose an expensive bluff from your opponent.
When you get it right in a big hand, there's no bigger or better feeling in poker.
Here are five pretty spectacular - and instructive - Hero Calls in video form, picked out by PokerOlymp's Arved Klöhn.