US Open 2024: Taylor Fritz's stunning girlfriend Morgan Riddle cheers on her man from the front row

American No 1 Taylor Fritz was cheered on from the front row by his stunning girlfriend Morgan Riddle at the US Open on Monday afternoon.

Not fazed by the boiling New York sunshine, model and influencer Riddle donned a blue top and cream shorts to watch her boyfriend's first-round match.

Throughout the first set, the 27-year-old could be heard encouraging her man with 'Come on T', before she rose to her feet to celebrate him winning the first set on Louis Armstrong Court.

At the end of the first set - after five minutes fanning herself with her VIP pass - Riddle dashed off court for a break, stopping with fans on her way out for selfies.

Until a few months ago, Riddle would have found herself able to blend in among the crowds at her boyfriend's tennis tournaments, but that is no longer the case.

Morgan Riddle beams with pride after boyfriend Taylor Fritz won the first set on Monday

Model Riddle applauds her man from the front row despite the baking sun in New York City

At the end of the first set, Riddle left for a break - having been fanning herself with her VIP pass

She was recently labeled 'the most famous woman in men's tennis' by The New York Times, amid a bitter online feud with Fritz's rival Alexander Zverev.

After Fritz beat the German, who was accused of physically abusing the mother of his child in 2020 and has since agreed to pay her $217,820 in a settlement, Riddle posted on her Instagram story: 'A win 4 the girls.'

Although Zverev was found not guilty of any wrongdoing, the Instagram post appeared to reference his off-court issues, and the player himself took umbrage with the comments. 

'His team is extremely respectful. I think his coach, his physio, also his second coach, they're extremely respectful,' Zverev said. 

'I think there's some other people that maybe are in the box that are not maybe from the tennis world, that are not maybe from particularly watching every single match. They were a bit over the top.'

Fritz looked in imperious form during his first-round match against Ugo Carabelli on Monday

Riddle and Fritz, the world No. 14 in tennis, have been dating for four years

She later addressed the cryptic post, clarifying, 'Regarding my stories yesterday... i took them down as soon as i realized the misunderstanding and how blown out of proportion they had become by the media.'

She went on: 'They were not about anything that's happened off the tennis court & there's no bad blood between anyone.' 

It remains to be seen whether Fritz and Zverev will play again at this year's US Open.