2 0 1 1 ▁Australian ▁Open , ▁falling ▁to ▁Nov ak ▁Dj ok ov ic , ▁ 6 – 7 , ▁ 5 – 7 , ▁ 4 – 6 . ▁He ▁then ▁reached ▁his ▁second ▁final ▁of ▁the ▁year ▁at ▁the ▁ 2 0 1 1 ▁Dub ai ▁Tennis ▁Championships , ▁losing ▁to ▁Dj ok ov ic , ▁ 3 – 6 , ▁ 3 – 6 . ▁He ▁then ▁reached ▁the ▁semif inals ▁of ▁Indian ▁Well s , ▁Miami , ▁and ▁Madrid . ▁At ▁the ▁ 2 0 1 1 ▁French ▁Open , ▁Feder er ▁ended ▁Dj ok ov ic ' s ▁ 4 3 - match ▁winning ▁stre ak ▁in ▁the ▁semif inals , ▁ 7 – 6 , ▁ 6 – 3 , ▁ 3 – 6 , ▁ 7 – 6 . ▁However , ▁he ▁fell ▁in ▁the ▁final ▁to ▁Rafael ▁Nad al ▁in ▁four ▁sets , ▁ 5 – 7 , ▁ 6 – 7 , ▁ 7 – 5 , ▁ 1 – 6 . ▁At ▁W im ble don , ▁the ▁Swiss ▁fell ▁to ▁Jo - Wil fried ▁Ts ong a ▁in ▁the ▁quarter final s , ▁ 6 – 3 , ▁ 7 – 6 , ▁ 4 – 6 , ▁ 4 – 6 , ▁ 4 – 6 . ▁This ▁marks ▁the ▁first ▁time ▁that ▁Feder er ▁fell ▁after ▁leading ▁two ▁sets ▁to ▁love ▁in ▁a ▁Grand ▁S lam . ▁He ▁then ▁fell ▁early ▁in ▁Montreal ▁and ▁C inc inn ati .