Why do players smear black under their eyes?
Black eye smear reduces the blinding sunlight when looking up towards the sun, when catching/hitting the ball
<START_INST>Why do players smear black under their eyes?<END_INST><START_CTX><END_CTX><START_A>Black eye smear reduces the blinding sunlight when looking up towards the sun, when catching/hitting the ball<END_A>