Andy Samberg takes on Game of Thrones’ Kit Harrington in the most epic fake tennis match in history with the upcoming HBO mockumentary, 7 Days in Hell. Samberg plays Aaron Williams while Harrington plays Charles Poole as neither man refuses to give up, even after exhaustion sets in after 7 days on the court. The comedic cast rouding out the mockumentary is Mary Steengbergen as Charles’ mother, Lena Dunham as an executive for Jordache, Michael Sheen is a sleazy TV show host, Karen Gillian is a supermodel watching the match and Fred Armisen and Will Forte are tennis historians. Actual tennis players Serena Williams, John McEnroe and Chris Evert also weigh in on the epic match. The special will air on July 11th and you can check out the teaser below.