Seventeen-time Grand Slam winner Roger Federer defeated his Swiss compatriot Stanislas Wawrinka in straight sets (6-4, 6-3, 6-1) in the semifinals of the US Open on Saturday. With this win, Federer now advances to the US Open finals for the first time since 2009 and is now set to face the World number 1 Novak Djokovic on Sunday.