Inside the #USOpen with Bethanie Mattek-Sands @matteksands: Login into #Snapchat today and discover the the first US Open dedicated lens, a special surprise for our fans in America. Send us 🇺🇸if you tried the lens today. ** Get snapping and follow @usopentennis. Share your lens on Insta for a chance to be featured on our page using hashtag #MyUSOpen. __ #tennis #instawow #grandslam #snapchatmeplease #snapchatfun #snapchatme #instasports #instasport #sharingiscaring #NYC #bethaniematteksands