Aus Open: Day 11 in pictures

Photo: JASON O'BRIEN

Switzerland's Roger Federer reacts during his semi-final match against Serbia's Novak Djokovic

Photo: Cameron Spencer

Novak Djokovic plays a forehand in his semi final match against Roger Federer

Photo: ISSEI KATO

Fans cheer for Federer during his match against World Ni.1 Novak Djokovic

Photo: Michael Dodge

Coach of Novak Djokovic, Boris Becker, looks on as Djokovic breaks serve in his semi final match against Roger Federer

Photo: TYRONE SIU

Serbia's Novak Djokovic (R) and Switzerland's Roger Federer shake hands at the net after the match

Photo: Aaron Favila

A spectator holds up a banner during the match between Roger Federer and Novak Djokovic

Photo: Cameron Spencer

Angelique Kerber plays a forehand in her semi final match against Johanna Konta

Photo: TYRONE SIU

Angelique Kerber (L) and Johanna Konta shake hands after Kerber won their semi-final match

Photo: THOMAS PETER

Serena Williams hits a shot during her semi-final match against Agnieszka Radwanska

Photo: Michael Dodge

Agnieszka Radwanska plays a forehand in her semi final match against Serena Williams

Photo: Rafiq Maqbool

Serena Williams is congratulated by Agnieszka Radwanska after winning their semi-final

Photo: TYRONE SIU

Serena reacts as she signs autographs after winning her semi-final match

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Switzerland's Roger Federer reacts during his semi-final match against Serbia's Novak Djokovic