![Tennis star left bloodied after smashing racket against his own head in bizarre meltdown](https://cdn.newsserve.net/ONPglobe256.png)
Tennis star left bloodied after smashing racket against his own head in bizarre meltdown
WARNING: GRAPHIC IMAGES - French tennis star Adrian Mannarino took using one's head to unnecessary heights during a recent United Cup clash against Germany's Alexander Zverev
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