Many fans watched Serena play live, but only her biggest fans held on to their past tickets. If you're one of them, head to Heineken.com/SecondServeTickets for a chance to turn your past ticket into a ticket to this year’s US Open! 🎾👑 Must be 21+ to enter. US residents only. #SecondServeTickets #SerenaWilliams #USOpen #HeinekenUS #FansHaveMoreFriends