Four-time champion Roger Federer sailed into the Australian Open semi-finals by clinching a straight-set win over unseeded German Mischa Zverev on Tuesday.
The 35-year-old Swiss tennis maestro reached the semis for the Australian Open for the 13th time with a 6-1 7-5 6-2 win over Zverev, who upset world number one Andy Murray on Sunday.
Federer aiming to win his 18th Grand Slam title faces compatriot Stan Wawrinka in the last four. Fourth seed Wawrinka had beaten Jo-Wilfried Tsonga 7-6 (7-2) 6-4 6-2 in their quarterfinal encounter.
Stan Wawrinka won his first Grand Slam title at the Australian Open in 2014.