LUKE LITTLER is aiming to become a darts world champion at Alexandra Palace after finishing runner-up last time out.
And he will be cheered on by No1 fan and big sister Caitlin.
The 22-year-old tends to shy away from the bright spotlight her brother has found himself in over the last 12 months.
However, Caitlin has been a die-hard supporter from the sidelines since Littler's explosive debut at the World Darts Championship last year.
She appears to lead a relatively normal life at home in Warrington.
But Caitlin brings her own brand bit of glitz and glamour everywhere she goes, with 27,000 followers on TikTok and an Instagram page set to private with almost 11,000 followers.
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And despite being siblings, people are often surprised to find out she is related to the Nuke, given their lack of resemblance.
That can be partly put down to her bleaching her naturally brown hair and getting lip fillers to achieve her desired look.
She and Littler, who was joined at the Sports Personality of the year awards on Tuesday night by parents Anthony and Lisa, also have two brothers, Leon and Harry, who also cheer on the darts prodigy from the sidelines.
Caitlin has taken to social media on several occasions to speak about Littler's achievements.
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After he made it to the final of the World Darts Championship last year, she said: "Can’t even begin to put into words how proud I am of you Luke, we all love you so much and cannot wait to see what else you can achieve.
"You are amazing and this is just the start, Woww running out of words, so proud."
When he later won the Premier League, she wrote on Facebook: "I actually have no words, what a birthday present! Proudest sister ever.
"Everyone’s probably getting bored of me sharing posts about Luke but I can’t stop he’s just too good."
Speaking exclusively to The Sun, culture and branding expert Nick Ede said she could be a key part of the Littlers becoming the "Next Furys", following the success of boxer Tyson, wife Paris and their brood on Netflix.
Littler has had a remarkable rise over the last year, soaring to World No4, landing brand deals and being named the Young Sports Personality of the Year.
Ede said: "The girls have all the elements of becoming classic reality TV stars like Paris Fury and Molly Mae.
"I can see a realty show on the life of Luke and I can also see him appearing on our screens as a guest on daytime TV shows and on quiz shows too.
"He's only young so he will need support from a good team but the world is his oyster."
Caitlin was also "the best thing to ever happen" to boyfriend Jack, as he described in a December 2022 social media post.
In a loved-up post, he said: "Happy new year, just want to say thank you to this gorgeous girl for coming in my life and helping me find myself again.
"I've had such a s*** year and she has been hands down the best thing to ever happen to me I love her more than anything."
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Jack also appears to be close with the darts maestro himself, joining in his hug with Caitlin at the PDC finals in January.
Littler will return to the Ally Pally oche on Saturday night against Ryan Meikle, who beat Fallon Sherrock in a five-set thriller in round one.