Federer to face compatriot Wawrinka in Aus Open semifinal
Swiss tennis star Roger Federer will face compatriot and world number four Stanislas Wawrinka in the semifinal of the Australian Open 2017. The four-time Australian Open champion defeated Germany's Mischa Zverev in straight sets to reach his 13th semifinal at the tournament and his 41st Grand Slam semifinal overall. Notably, Zverev had knocked out Andy Murray in the 4th round.