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Games like football, soccer and rugby come to mind when thinking about sports-related concussions.

But a smashing tennis shot could cause a traumatic brain injury if the ball whacks a player's head, a new study argues.

Concussions can happen if a tennis ball traveling faster than 89 miles per hour hits someone on the head, researchers report.

The average serve speed in profess...

NBA great Michael Jordan had a special ritual he would follow before every free throw: He would assume a shoulder-width stance, spin the basketball in his hands, bounce the ball three times, and then spin the ball once more while focusing on the rim before finally taking his shot.

Now, new research suggests similar routines could improve your sports performance, whether you're an amateur ...