Taylor Fritz won a big-hitting battle with Alexander Zverev to reach his first Grand Slam semi-final at the US Open on Tuesday.

The 12th-seeded Fritz came through against the fourth-seeded 2020 runner-up 7-6 (7/2), 3-6, 6-4, 7-6 (7/3) and will face either American compatriot Frances Tiafoe or Grigor Dimitrov of Bulgaria for a place in Sunday's final.

"I have had a few looks at Grand Slam quarter-finals over the years so I felt it was my turn to take a step further," said the 26-year-old Fritz who cracked 12 aces amongst his 45 winners.

"I've always had a big serve but at the top of the game it comes back a lot more," he added.

Zverev's defeat means world number one Jannik Sinner is the only top-four player left in the draw following the shock early exits of Novak Djokovic and Carlos Alcaraz. (AFP)