Concussions and head injuries are a top concern amongst contact sports such as rugby - but a new study shows even football players aren't immune from their sport affecting their cognitive function. 

A new study published in the JAMA Ophthalmology has found that players who head the ball instead of just kicking it can suffer negative effects - at least for 24 hours after.

Michelle Dickinson joined Andrew Dickens to discuss the study and what it means for football stars.

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