Roger Federer reached the Australian Open semi-finals in dramatic fashionRoger Federer produced a Houdini act after recovering from injury and saving seven match points against Tennys Sandgren to keep his hopes of landing a seventh Australian Open title alive. Federer, who has never retired in 1,511 previous tennis matches, appeared to be heading towards defeat against Sandgren after picking up a groin injury. But he conjured up a great escape to turn the match around and win 6-3 2-6 2-6 7-6 (10-8) 6-3. Those seven match points, you're not in control. Federer took a medical timeout before saving seven match points against SandgrenSandgren's first three chances came on Federer's serve at 5-4 but the American made errors on all of them.

Source: Sky sports January 28, 2020 07:58 UTC