Why do baseball players put a black mark under their eyes?

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The University of Texas at Arlington

Why do baseball players wear eye black?

Eye black is not the only way athletes fight glare. Baseball hats help shade players’ eyes. Skiers wear goggles because snow can reflect sunlight like a mirror. Race car drivers use tinted helmet ...

Why athletes put black marks under their eyes - and what science says about the practice

The practice of using eye black has been around for a long time. Some stories say Babe Ruth used burned cork under his eyes. Football players may have been experimenting with it more than 100 years ...