C-3PO, R2-D2 examine the amount of force used in sports
"Star Wars" droids C-3PO and R2-D2 examine the amount of force used in IndyCar racing, Bryce Harper's hitting and sumo wrestling.

"Star Wars" droids C-3PO and R2-D2 examine the amount of force used in IndyCar racing, Bryce Harper's hitting and sumo wrestling.
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