One experiment showed that a keeper could stand two and a half to four inches off-center in the goal and induce 10 percent more kicks into the wider area, meaning his dives in that direction are more effective.11 He can also make the kicker believe he is bigger than he is by holding his arms out and above his shoulders.12 This provides a human equivalent of the famous Müller-Lyer illusion, which makes you think that the vertical line on the left in the diagram is longer than the one on the right. And then there is the technique that both Bruce Grobbelaar and Jerzy Dudek would recognize: he can
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