US Open: A look at 5 big upsets in the last decade

#3 2018 Fourth Round: Millman beats Federer 3-6, 7-5, 7-6(7), 7-6(3)

Millman upsets Federer in the fourth round of the 2018 US Open

Unheralded Australian John Millman produced the upset of the 2018 US Open by knocking out five-time champion Roger Federer in the fourth round.

On a sultry New York evening, Federer took a one-set lead but saw his level plummet in the second set as his first serve spectacularly started misfiring. The Swiss managed to survive seven break points in the fourth game and broke Millman in the next game to take a 3-2 lead.

Federer arrived at two set points (40-15) when serving for the second set at 5-4 but remarkably faltered as the Australian won four points in a row to break back. Serving to stay in the set at 5-6, Federer once again lost four points in a row from 40-15 as Millman leveled the match at a set apiece.

Willed on by a passionate Arthur Ashe crowd, Federer's level improved in the third set and the Swiss had a set point on the Millman serve only for the Aussie to fire a second serve ace and go on to take a two-sets-to-one lead.

Federer broke for 4-2 in the fourth set but another poor service game from the Swiss helped Millman back into the set who went on to win the ensuing tie-break to seal one of the biggest wins of his career.

Unable to control the match from the baseline, Federer resorted to 35 drop shots but the Australian punished the Swiss in most of them en route to a monumental upset.