Reigning tennis champion, Novak Djokovic and number three seed Roger Federer will square off in the first men's semi‑final at the Australian Open today.
Federer, who has not won a grand slam title since 2012 and lost five of his eight matches against Djokovic last year, is in arguably the better form.
Undisputed world number one Djokovic has dropped a set more than Federer but has never lost in the semi‑finals of the tournament.