Get ready to see Game of Thrones star Kit Harington duke it out with Andy Samberg…on the tennis court.

The two will be starring in 7 Days in Hell, an HBO mockumentary about a (fictional) exhausting seven-day match at 2004 Wimbledon.

Samberg will play hotshot “Aaron Williams” and rival to Harington’s spectacular tennis player “Charles Poole.”

In real life, Wimbledon was actually host to the longest tennis match in 2010 when John Isner and Nicholas Mahut when at it for 11 hours over three days.

The star studded cast also includes: Lena Dunham, Fred Armisen, Will Forte,  and June Squibb, among others.

No word yet on how short Samberg and Harington's tennis shorts will be.

[via Deadline]