Roger Federer can believe a 20th grand slam title is within his reach after South Korean opponent Hyeon Chung retired hurt during their Australian Open semi‑final.

The Swiss maestro advanced to a record seventh final at Melbourne Park, overtaking Novak Djokovic for the most Australian men's finals reached in the Open era.

Federer had conceded just three games when Chung, who struggled with a nasty blister on his left foot and trailed 6‑1 5‑2, told the chair umpire he could no longer continue.

The five‑time Australian Open champion will face Rafael Nadal's quarter‑final conqueror Marin Cilic in Sunday night's title decider.

Source: Reuters