World No.1 Aryna Sabalenka reveals her go-to pre-match meal as she steps out with her beefcake boyfriend after getting Uber Eats at the Australian Open

Belarusian powerhouse Aryna Sabalenka has been photographed collecting her pre-match meal before stepping out with her boyfriend Georgios Frangulis at the Australian Open.

The world No.1 got her quest for a third successive Australian Open crown off to a winning start on Sunday night.

She faced American Sloane Stephens, the 2017 US Open champion, under the Rod Laver Arena roof and posted a 6-3 6-2 victory.

Earlier in the day at around 3.20pm, Sabalenka gave her fans a glimpse into how she fuels up for big matches when she was pictured picking up her Uber Eats delivery.

Dressed in relaxed workout gear, the tennis star collected some tasty snacks,  including beef brisket bao buns and spicy corn fritters.

After her meal, the 26-year-old was spotted heading out for a stroll with her superfood entrepreneur partner, with the pair visiting the Tiffany & Co. jewellery on Melbourne’s upmarket Collins Street.

Earlier in the week, Sabalenka treated her followers to a series of pictures of her and Frangulis, with one featuring a shot of her wearing a gold ring with a huge gemstone on the ring finger of her left hand.

The tennis superstar needed to fuel up before her match with American Sloane Stephens

Sabalenka’s meal included beef brisket bao buns and spicy corn fritters

Many of her fans jumped to the conclusion that her man had popped the question, but Sabalenka replied to one by writing: ‘No guys, it’s just a beautiful ring, we are not engaged.’

The 26-year-old went public with the romance in May last year, sharing a photo of them together after she fell to Iga Swiatek in the Italian Open.

That came two months after her ex-boyfriend, Belarusian ice hockey star Konstantin Koltsov, died after jumping from a hotel balcony in Miami in a tragedy that left the tennis star shattered.

In July, Sabalenka described Frangulis as the ‘love of my life’ as the couple enjoyed a holiday after injury forced her to withdraw from Wimbledon.

Born in Brazil, Frangulis is the founder of superfood brand Oakberry, which sponsored the Haas F1 team and formed a partnership with Sabalenka after the romance began, and she created an acai bowl of her own for the brand.

He studied law before becoming an entrepreneur and has a strong interest in motor sport, having driven in 128 races of Brazil’s Porsche 911 GT3 Cup competition.

Frangulis often posts touching messages to his partner on Instagram, writing ‘I’m in love with the queen of NY’ when the pair were photographed together after she won last year’s US Open at Flushing Meadows.

When Sabalenka captioned a recent post showing them together with ‘Tis the season for silly couples pictures, good outfits, and great food,’ he responded with, ‘Always silly never boring, te amo,’ using the Portuguese term for ‘I love you’.

After her meal, Sabalenka was spotted out walking with her superfood entrepreneur boyfriend Georgios Frangulis

The world No.1 went public with her romance with the Brazilian entrepreneur last May

Koltsov and the Sabalenka were together for three years before his death and the Grand Slam champion later opened up about how she dealt with his passing.

‘Once, I lost my father and tennis helped me to go through that tough loss,’ she said.

‘So at that moment [of Koltsov’s death] I thought I had to just keep going, keep playing, keep doing my thing to separate my personal life from my career life.

‘But at the end I would say I was struggling a lot healthwise because I didn’t stop. It was really emotional and really stressful, and kind of damaged my mental health at that point.’

After Sunday night’s match, Sabalenka said her improved mental toughness is behind her rise to the top.

While she never appeared in danger of defeat, Sabalenka lacked her usual polish in the opening set, with her booming serve going missing.

The Belarusian roared to a 4-0 lead but twice dropped her serve to allow Stephens to claw her way back to trail 4-3.

Sabalenka is looking to make it three women’s singles crowns in three years at this year’s Australian Open

But a steely Sabalenka regained control and was able to break the veteran world No.66 before serving the set out.

She said her old self may have sabotaged the match at that point.

‘I think it’s a big difference. Compare myself to even like three years ago, in that moment I would get frustrated and probably would lose the first set,’ Sabalenka said.

‘I’m not sure if I would be able to win the match.

‘I’m really glad that I improved my mental toughness – I’m able to stay focused no matter what the score, what the situation is. I’m focusing on the game, on the point. I’m focusing point by point.’