It was a #TeamUSATennis party for all ages today at the #USTA Billie Jean King National Tennis Center! Send a 🇺🇸 if you’re cheering our @fedcuptennis squad on for Day 2 of the final vs. Belarus starting at 6:00am ET! #ustennis #fedcup #cocovandeweghe #sloanestephens #shelbyrogers #alisonriske #protennis #instatennis #instasports #instawow