Do Scrabble experts really know their 2s?

The 2 letter words are the first thing any new tournament Scrabble player learns. They come up dozens of times every single game, and are the basic building blocks for everything in Scrabble. So surely an expert would never make a mistake on one, right? Wrong! Watch and marvel as some of the world's best, including the great Nigel Richards and David Gibson, seem to forget the very basics! Jesse vs. Sid debacle:    • The worst Scrabble debacle ever??