Savannah Guthrie's passion for Roger Federer has not faltered one bit, and the known megafan made sure she was there to cheer on her idol during a tense US Open match.

The 45-year-old Today show host shared a short clip of herself ogling at the Switzerland native during his five-set face-off against Russian athlete Mikhail Youznhy, 35, on Thursday night.

During the match, she posted several videos of her favorite tennis player, using hashtags such as #superfan and #supergeek and making it clear she was firmly in the Roger camp.

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Owning it: Savannah Guthrie shared a short clip of herself ogling at Roger Federer during his five-set face-off against Russian athlete Mikhail Youznhy on Thursday night

Proud: The 45-year-old Today show host posted several videos of the tennis player, using hashtags such as #superfan and #supergeek, making it clear she was firmly in the Roger camp

'You could cut the tension with a Swiss knife,' Savannah, who also shared a photo of herself close to the tennis court, wrote in the snap's caption.

She apparently couldn't get enough of the Bottmingen, Switzerland native's prowess, sharing a clip of him serving with her 406,000 followers.

Savannah then made no secret of her happiness at the game, writing in another caption: 'Dreams do come true. Thank you @rogerfederer.'

When the game's fifth set began, the anchor didn't lost faith in the revered tennis player, and while she admitted the atmosphere had gotten extremely tense, she wrote: 'Come on Rog' in another post, referring to the athlete by his nickname.

Eventually, Savannah, making no secret of the intensity of her admiration for Roger, and shared the video of herself looking at him from a distance as he toweled himself off, admitting in the caption: 'Busted. Staring.'

Roger, who won his match against Youznhy, has long been a source of admiration for Savannah.

Getting tense: 'You could cut the tension with a Swiss knife,' Savannah, who also shared a photo of herself close to the tennis court, wrote in the snap's caption

She's a fan: Roger (pictured on Thursday night), who won his match against Youznhy, has long been a source of admiration for Savannah

In July, the host showed that she has transmitted her passion to her three-year-old daughter Vale, who cheered on the five-time US Open winner with her mother while watching Wimbledon on television.

Savannah shared a video on Instagram (and then on-air during an interview with the eight-time Wimbledon champion) showing the adorable toddler, then two years old, enthusiastically cheering on Roger during his semi-final against Tomáš Berdych.

The cute clip shows Savannah and her daughter sitting on their couch watching the match, with Vale happily cheering, 'Roger! Roger! Roger!' at the camera, before her smiling mom joins in.

Later on, Savannah couldn't wait for the opportunity to share the sweet video with Roger, broadcasting it live on air while speaking to the Wimbledon victor the following Monday.

Loving it: Savannah (pictured in a recent Instagram shot) made no secret of her happiness at the game, writing in another caption: 'Dreams do come true. Thank you @rogerfederer'

Previously: In July, the host showed that she has transmitted her passion to her three-year-old daughter Vale, who cheered on the five-time US Open winner with her mother

Speaking to the tennis pro via video, Savannah eagerly confessed to Roger - who powered his way to a nineteenth grand slam title on Sunday - that she is one of his biggest fans.

'I don't know if you've been informed Roger, but I may be your number one super fan, not just because you're an excellent tennis player, but because you seem to be such a sincere and excellent sport, and so many people have said that,' she said, prompting the Wimbledon champion to reply: 'Thank you so much for your support, I have been told and you're too kind.'

Clearly eager to cement her status as Roger's most dedicated fan, Savannah continued: 'Well I don't know if you know this, but my two-year-old daughter, a little girl named Vale, loves you very much, and we were watching your semi final and I wanted to show you a little piece of that tape I took.'

Cheerleaders! Savannah previously shared a cute clip of herself and her daughter sitting on their couch watching the match, with Vale happily cheering, 'Roger! Roger! Roger!'

The cute clip shows Savannah and Vale cuddling together on a sofa in their New York home while watching Wimbledon on the TV, with a dungaree-clad Vale happily cheering, 'Roger! Roger! Roger!' at the camera.

Gamely laughing at the sweet video, Roger joked: 'Oh my god, making sure she's a Roger Federer fan too!'

'She is!' Savannah replied, adding: 'It is in her DNA, it is absolutely in her DNA.'

Bringing the interview to a close, Savannah added: 'I'm glad to see you holding the trophy, I wanted you to know I've been holding my tennis racket during this entire interview,' before holding it up to show the tennis gear to Roger.

Going global: Roger and Savannah spoke via video call in July, less than 24 hours after Roger's eighth Wimbledon victory

Dream moment: Savannah joked after the interview that she can 'die now' after getting a chance to tell Roger how much she admires him and chat with him during the interview

After the interview was over, Savannnah's co-host Hoda Kotb mentioned that Roger had said the Today show anchor's name during the interview, with Savannah joking: 'I can die now, I wore red for Switzerland, I put Swiss cheese on my breakfast sandwich, it's a Roger day!'

Explaining her enthusiasm about speaking with the Wimbledon champ, Savannah added: 'He's such a great player, and he's a great sport, and that's truly why I admire him so much.

'And I think everyone on the tour loves him too so I'm in good company.'

Hoda admitted she was surprised to see Savannah in such a fluster over an interview, joking: 'I've never seen you quite like this, in all the years... this is special.'

Savannah replied: 'It's funny because [people] were saying I was a real dork around Duran Duran, and I said, "That's fine, I love Duran Duran," but that was 30 years ago I had the crush, this is a live crush right now, this is happening in current time.'