ASCOT, ENGLAND - MAY 28: Prince Harry receives treatment on his back at The Audi Polo Challenge at Coworth Park on May 28, 2016 in Ascot, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
ASCOT, ENGLAND - MAY 28: Prince Harry receives treatment on his back at The Audi Polo Challenge at Coworth Park on May 28, 2016 in Ascot, England. (Photo by Mark Cuthbert/UK Press via Getty Images)