Presented with a huge opportunity to win Wimbledon, Ajla Tomljanovic’s biggest second-week threat may well be … Ajla Tomljanovic.

Charged with the seemingly impossible task of delivering Australian tennis fans an acceptable encore to Ash Barty’s hoodoo-busting 2021 triumph at the All England Club, Tomljanovic has boldly stepped up to reach the last 16 for the second successive year.

“It’s very satisfying,” the 29-year-old said ahead of her fourth-round tussle on Monday with French giant killer Alize Cornet.

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“I don’t know, coming in, you’re not seeded so you don’t know what can happen. Even if you are, it’s a slam. There is always upsets.

“I don’t know what really my form was coming in, but I just knew that I could produce good tennis but actually doing it, it feels really nice.

“Just kind of confirms that I maybe do belong here.”

The only player to trump Tomljanovic on the hallowed London grass courts during her two stellar runs in 2021 and 2022 has been the all-conquering Barty in last year’s quarter-finals.

Yet Tomljanovic, nudging 30, is still trying to convince herself that challenging for grand slams really is possible.

“I’m the type of person, like I constantly have to prove myself to myself,” said the world No.44 and Australian No.1.

“I have realised that’s a little unfair sometimes, because I should be my biggest own supporter. Whoever wants to doubt me can doubt me, that’s not me.

“But I feel like I haven’t given myself sometimes the credit I deserve. I am mad at myself sometimes that it takes a little bit longer for me to be, ‘Okay, I can do this, even if I’m not seeded or something. I can still make a run’.

“I always have this little bit tentative approach, like, ‘Okay, I’m going to try my hardest but we’ll see how it goes’.

“I’ve just learned to be a little more, like, I can do this, I’m here to win. It’s just nice that it’s kind of really showing.”

After taking out 2021 French Open champion Barbora Krejcikova, the 13th seed, in the third round, Kazakhstan’s world No.23 Elena Rybakina is the highest-ranked player standing between Tomljanovic and a place in the semi-finals.

It’s hardly a daunting draw even for a player burdened with such notorious self-doubts.

It’s also an unexpected opportunity after Cornet eliminated world No.1 Iga Swiatek – Tomljanovic’s projected fourth-round opponent – in the biggest shock of the tournament on Saturday.

Suddenly, Tomljanovic is preparing for a battle with an opponent ranked only seven places higher than her rather than one riding the longest winning streak in women’s tennis in a quarter of a century.

Opportunity most certainly knocks, with Tomljanovic’s reward for victory over 32-year-old Cornet being another winnable quarter-final with either Rybakina or unseeded Croat Petra Martic on Wednesday.