The main issue with Alexis Sanchez is that he wont release the ball.
Compare him to Suarez who will happily run into a gang of 5 defenders, skill them up, and then release the ball into the space he created.
Sanchez in contrast has a death wish, will always look for the next man. Ive genuinely watched him, willed him to move inside into the room that he himself created, only to see him start dribbling into some random wingers
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Alexis Sanchez, if he wasnt a footballer but just living in London, is the kind of guy who sees proper roadmen chilling outside Finsbury Park and casually asks for a light. He has no sense of danger at all