Roger Federer survived an unexpected test at the Swiss Indoors on Friday before making the semi-finals at his home occasion for the fourteenth time with a hard-battled 4-6, 6-1, 6-3 prevail upon Adrian Mannarino.
The French seventh seed, who had dropped 10 straight sets in four losing matches against the world number two, stunned the home crowd at the St Jakobshalle by winning the firstset.
Mannarino broke to love for a 5-4 prompt rapidly set up early prevalence. Yet, Federer, who lost only eight games in his initial two matches, rose to the event, leveling at a set each with two service breaks.
In the third set, the Swiss best seed spared soften focuses up the 6th diversion for 3-3 preceding breaking for a 4-3 lead with a backhand winner.
Federer, 36, finished his extraordinary escape one diversion later with a break, firing an untouchable passing shot on a first match point to take the win in just shy of one and three-quarter hours.