By Madeline Coleman As if Wimbledon wasn’t chaotic enough on Saturday, the U.S. Open social admins woke up and chose violence. View the original article to see embedded media. The U.S. Open Tennis social media admins woke up and chose violence today. SportsCenter tweeted a “cold-blooded” video of a wicked between-the-legs serve from Nick Kyrgios against Stefanos Tsitsipas during a third round match at Wimbledon. While most of tennis Twitter raved about the play, one fan was not as amused, tweeting, “not a sport.” The U.S. Open Twitter account was not having the hate, clapping back at the Seaha…