Novak Djokovic is hoping to become the first man since 1969 to win a calendar Grand Slam
US Open 2021
Venue: Flushing Meadows, New York Date: 30 August-12 September
Coverage: Daily radio commentaries on BBC Radio 5 Live Sports Extra/BBC Sport website and app, with selected live text commentaries and match reports on the website and app
World number one Novak Djokovic won a gruelling five-setter against Alexander Zverev to set up a US Open final against Daniil Medvedev and keep his bid for a calendar Grand Slam on track.

Russian second seed Medvedev had earlier kept alive his hopes of a first major title with a 6-4 7-5 6-2 win over Canadian Felix Auger-Aliassime.

Djokovic then recovered from falling a set behind to win 4-6 6-2 6-4 4-6 6-2.

He now has the chance to win a record 21st men's Grand Slam singles title.

Victory over Medvedev on Sunday at Flushing Meadows would move Djokovic clear of the 20 majors won by Roger Federer and Rafael Nadal.

History-chasing Djokovic would also become the first man to win all four majors in the same year since Rod Laver in 1969.

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Djokovic outlasts Zverev in New York
In fourth seed Zverev, Djokovic came up against a player who six weeks ago ended his hopes of another slice of history, the 'Golden Slam', by beating him at the Olympics.

The 34-year-old must have feared a repeat when he double faulted to hand Zverev the chance to serve for the opening set, to which his opponent obliged despite double-faulting himself on his first set point.

Early in the second the roles were reversed, Zverev missing a straightforward forehand and following up with a double fault as Djokovic broke and then cantered through the set to level.

Zverev was frustrated at not being able to convert a break in the opening game of the third and again missed a chance at 2-2, only to later present Djokovic three set points.

He saved two, the second in a remarkable 53-shot rally, but Djokovic smashed away the third at the net to take the lead and celebrated by rousing the crowd with his arms aloft.

Zverev again engineered break points at 1-1 in the fourth set and this time zipped a forehand winner beyond his opponent as he held on to that advantage to force a decider.

It was Djokovic who found the breakthrough in Zverev's opening service game in the fifth set and the Serb's enduring class showed through as he raced into a 5-0 lead.

Zverev, who at 24 is 10 years Djokovic's junior, got on the board and then clawed back one break to keep the semi-final alive, much to the New York crowd's delight.

The three-time US Open champion hit straight back to bring up match point on Zverev's serve and sealed his place in the final when his opponent found the net after three hours and 33 minutes of tennis.

Third time lucky for Medvedev?
Daniil Medvedev
Daniil Medvedev, seeking his first major title, is into his third Grand Slam final
Medvedev will contest his third Grand Slam final on Sunday, having lost the 2019 final at Flushing Meadows to Rafael Nadal and the Australian Open final to Djokovic in February.

The 25-year-old, who has won titles on the hard courts in Marseille and Toronto this year, conceded his only set of the tournament during his four-set win over Dutch qualifier Botic van de Zandschulp in the previous round, during a largely trouble-free run to the final.

Medvedev ominously broke to love in the seventh game of the opening set against Auger-Aliassime, choosing his moment to apply pressure and put his 21-year-old opponent on the back foot.

The second set proved far trickier for the Russian, as Auger-Aliassime - contesting his first Grand Slam semi-final - clinched a second break-point opportunity before holding serve to lead 5-2.

The set - and a chance for the Canadian to level the match - unravelled from there.

Twice unable to convert at set point, Auger-Aliassime was punished by Medvedev, who broke back and rattled through four successive games to abruptly end his opponent's momentum and take a two-set lead.

After an opening hold of serve in the third set, the 12th seed's challenge capitulated as the world number two claimed another double break to cruise into a 5-1 advantage before wrapping up another commanding victory on serve.

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