Christian Harrison Pictures
HONOLULU, HI - DECEMBER 28: Christian Harrison of the United States and Danielle Collins of the United Statesenjoy the moment during a mixed-doubles exhibition match at the Hawaii Tennis Open against Sam Querrey of the Unites States and Yanina Wickmayer of Belgium at the Stan Sheriff Center on December 28, 2019 in Honolulu, Hawaii. (Photo by Darryl Oumi/Getty Images)